Mastro’s Steakhouse locations share similar menus, though preparation methods and side portions create noticeable differences in nutrition. When you’re watching your intake, understanding Mastro’s Steakhouse Nutrition and Calories before you arrive makes a huge difference in staying on track. This guide breaks down the most popular dishes, sauces, and sides so you can order with confidence.
Why Portion Sizes Matter At Mastro’s
Mastro’s is famous for generous portions. The steak portions are measured by weight before cooking, but the sides are served family-style. That means a single order of mashed potatoes or creamed corn can easily feed three or four people. If you eat the whole side by yourself, you are doubling or tripling the calorie count you might expect.
Most guests share sides. If you are dining solo, ask the server to box up half the side before it hits the table. This simple step keeps your calorie estimate accurate.
Steak Cuts And Their Calorie Ranges
Steaks are the centerpiece. The cooking method is simple: broiled with butter and seasonings. That butter adds calories, but the cut of meat determines the base number.
- Filet Mignon (6 oz): Around 380-450 calories
- Filet Mignon (8 oz): Roughly 500-600 calories
- New York Strip (12 oz): Approximately 700-800 calories
- Ribeye (16 oz): Can reach 1,000-1,200 calories
- Porterhouse (24 oz): Often exceeds 1,400 calories
These numbers assume the steak is cooked as-is with the butter baste. If you ask for “no butter” or “dry,” you can save about 100-150 calories per steak. The grade of beef also matters. Mastro’s uses Prime beef, which has more marbling. That marbling equals flavor but also more fat and calories compared to Choice or Select grades.
Steak Toppings And Sauces
Adding a sauce or topping changes the nutrition profile completely. A plain steak is one thing. A steak with blue cheese crust or bordelaise sauce is another.
- Blue Cheese Crust: Adds 200-300 calories
- Béarnaise Sauce: Adds 150-250 calories per serving
- Au Poivre (Peppercorn) Sauce: Adds 180-220 calories
- Caramelized Onions: Adds 60-80 calories
- Grilled Shrimp (3 pieces): Adds 90-120 calories
Ask for sauces on the side. Dipping your fork into the sauce rather than pouring it over the steak cuts the calories in half. Most sauces are rich because they are butter-based or cream-based.
Mastro’s Steakhouse Nutrition And Calories For Sides
Mastro’s sides are legendary, but they are also calorie-dense. The portions are huge, and they are prepared with cream, butter, or cheese. Here is a realistic breakdown per serving (about one cup or half a bowl).
Potato-Based Sides
- Mashed Potatoes: 250-350 calories per cup
- Lyonnaise Potatoes: 300-400 calories per cup
- Baked Potato (plain): 220 calories, plus 100-200 for toppings
- Sweet Potato (with brown sugar): 350-450 calories
The mashed potatoes are whipped with heavy cream and butter. They are smooth and rich. A half-bowl serving is usually around 400 calories. If you share with two other people, you are looking at 150-200 calories per person.
Vegetable Sides
Vegetables sound healthy, but not always at Mastro’s. The creamed spinach is a classic example.
- Creamed Spinach: 300-400 calories per cup
- Sautéed Broccoli (with garlic butter): 150-200 calories per cup
- Grilled Asparagus (with hollandaise): 200-250 calories
- Brussels Sprouts (with bacon): 250-350 calories
If you want a lighter veggie, ask for asparagus or broccoli without the butter or hollandaise. Steamed or dry-grilled versions save about 100 calories per serving. The kitchen is usually happy to accommodate.
Other Signature Sides
- Mac and Cheese: 400-500 calories per cup
- Truffle Fries: 350-450 calories per cup
- Lobster Mac and Cheese: 600-700 calories per cup
- Mastro’s Chopped Salad (with dressing): 450-550 calories per bowl
The chopped salad is a good option if you get the dressing on the side. The salad itself has cheese, salami, and avocado, so it is not low-calorie. But it is more balanced than the creamy sides.
Appetizers And Their Calorie Load
Appetizers can be the biggest calorie trap. You are hungry when you arrive, and the bread basket arrives first. Then the appetizers come. Before the steak even hits the table, you may have consumed 800-1,000 calories.
Popular Starters
- Bone Marrow (with toast): 500-600 calories
- Jumbo Lump Crab Cake: 400-500 calories
- Bacon-Wrapped Scallops (3 pieces): 350-450 calories
- Tuna Tartare (with wonton chips): 300-400 calories
- Mastro’s Meatballs (2 large): 450-550 calories
The bread basket is unlimited. Each dinner roll with butter is about 150-200 calories. If you eat two rolls, that is 300-400 calories before anything else. Skip the bread if you are counting calories, or limit yourself to one roll with no butter.
Soup And Salad Options
- Lobster Bisque (cup): 250-350 calories
- French Onion Soup (bowl): 400-500 calories
- Caesar Salad (side): 300-400 calories
- House Salad (with blue cheese): 350-450 calories
The soups are creamy and rich. The French onion soup is topped with a thick layer of melted cheese and a crouton. It is delicious but heavy. If you want soup, choose the cup size and skip the cheese or ask for half.
Seafood And Chicken Options
Not everyone goes to Mastro’s for steak. The seafood and chicken dishes have different calorie profiles. Some are lighter, but many are prepared with butter or cream sauces.
Fish And Shellfish
- Broiled Chilean Sea Bass: 600-700 calories
- Grilled Salmon (8 oz): 400-500 calories
- Lobster Tail (cold water): 300-400 calories
- Jumbo Shrimp Cocktail (4 pieces): 150-200 calories
- Whole Lobster (2 lbs): 500-600 calories
The sea bass is cooked with a miso glaze and butter. It is rich and flaky. If you want a lighter fish, the grilled salmon is a better choice. Ask for the sauce on the side or omitted.
Chicken And Other Meats
- Chicken Milanese: 700-800 calories
- Half Chicken (roasted): 600-700 calories
- Lamb Chops (3 chops): 700-900 calories
- Veal Chop (16 oz): 1,100-1,300 calories
The chicken Milanese is breaded and fried. It comes with arugula and tomatoes, but the frying adds significant calories. The roasted half chicken is a better option if you remove the skin.
Desserts And Drinks
Desserts at Mastro’s are enormous. The famous butter cake is a must-try for many, but it is a calorie bomb. Drinks also add up quickly, especially the signature cocktails.
Dessert Calorie Counts
- Mastro’s Butter Cake (for two): 1,200-1,500 calories total
- Chocolate Cake (slice): 800-1,000 calories
- Crème Brûlée: 400-500 calories
- Cheesecake (slice): 600-700 calories
- Sorbet (3 scoops): 200-250 calories
The butter cake is served warm with ice cream. It is meant to be shared. If you split it among four people, each person gets about 300-375 calories. That is manageable if you skipped the bread and sauce.
Cocktails And Wine
- Mastro’s Martini (classic): 250-350 calories
- Old Fashioned: 200-250 calories
- Margarita (frozen): 300-400 calories
- Glass of Red Wine (6 oz): 150-200 calories
- Glass of White Wine (6 oz): 120-150 calories
- Beer (domestic): 150-200 calories
Cocktails are often made with fresh juices and premium liquors. The sugar content in frozen drinks is high. If you are counting calories, stick to wine or spirits with a zero-calorie mixer like soda water.
Tips For A Lower-Calorie Meal
You can enjoy Mastro’s without blowing your daily calorie budget. Here are practical steps that work.
- Skip the bread basket. Ask your server not to bring it, or push it to the far end of the table.
- Order a salad with dressing on the side. Use half the dressing.
- Choose a leaner cut like filet mignon or a smaller New York strip.
- Ask for your steak cooked without the butter baste.
- Request sauces and toppings on the side.
- Share all sides with at least two other people.
- Box up half your entrée before you start eating.
- Skip dessert or share one dessert among four people.
- Drink water or unsweetened iced tea instead of cocktails.
- If you want wine, have one glass and sip it slowly.
These small changes can save you 500-1,000 calories without ruining the experience. The key is planning ahead and being honest with yourself about portion sizes.
Comparing Mastro’s To Other Steakhouses
Mastro’s is not the only high-end steakhouse, but its nutrition profile is similar to others like Morton’s, Ruth’s Chris, or Capital Grille. The main difference is the butter usage. Mastro’s is known for being extra generous with butter on steaks and sides.
Ruth’s Chris also uses a butter finish on steaks. Morton’s tends to be more moderate. If you are comparing calories, Mastro’s is on the higher end because of the butter and the large side portions. However, you can request modifications at any of these places.
The best strategy is to look at the menu online before you go. Mastro’s does not publish full nutrition information on their website, but you can estimate based on the ingredients and preparation methods. This guide gives you a solid baseline.
Frequently Asked Questions
Does Mastro’s Have A Nutrition Menu?
Mastro’s does not provide a complete nutrition menu online. You can ask your server for allergen information, but exact calorie counts are not always available. Use the estimates in this guide as a reference.
What Is The Lowest Calorie Steak At Mastro’s?
The 6 oz filet mignon is the lowest calorie steak option. At around 380-450 calories, it is the leanest cut. Ask for it without the butter baste to save an additional 100-150 calories.
Can I Order A Gluten-free Meal At Mastro’s?
Yes, many items are gluten-free. Steaks, seafood, and most vegetables are naturally gluten-free. The kitchen can prepare them without breading or soy sauce. Inform your server about your dietary needs.
How Many Calories Are In Mastro’s Butter Cake?
The butter cake is served for two and contains approximately 1,200-1,500 calories total. If you share it among four people, each serving is about 300-375 calories.
Are The Sides At Mastro’s Shareable?
Yes, all sides are served family-style. A single order typically feeds three to four people. If you are dining alone, ask for a half-order or box up the extra before eating.
Final Thoughts On Eating Smart At Mastro’s
Mastro’s is a splurge restaurant. The food is rich, and the portions are large. But you can make it work for your goals. Focus on the protein, skip the extras, and share everything. The experience is about quality, not quantity.
If you are tracking macros or calories, do not guess. Use a food scale at home to weigh your steak if you take leftovers. That gives you a precise number for the next day’s meal. Most people are surprised by how much food they take home.
One more thing: the service team is trained to be accommodating. Do not be afraid to ask for modifications. They want you to enjoy your meal. A simple request like “no butter on the steak” or “dressing on the side” is not a problem.
Planning your order ahead of time is the smartest move. You can enjoy the ambiance, the service, and the food without the guilt. Just remember the portions are big, the butter is real, and the calories add up fast. But with the right choices, you can leave satisfied and still within your daily budget.