Mastro’s Steakhouse – Costa Mesa Nutrition and Calories is a topic that many diners think about before they book a table. Mastro’s Steakhouse in Costa Mesa is known for prime cuts, but those buttery accompaniments can add significant calories to your meal. You might be surprised to learn that a single side dish can sometimes contain more calories than your entire steak.
This guide breaks down the actual nutrition facts for the most popular items on the menu. We will look at the steaks, the famous sides, and the desserts. By the end, you will know exactly what to order if you are counting calories or tracking macros.
Mastro’s Steakhouse – Costa Mesa Nutrition And Calories
Understanding the full picture of your meal is easier when you have the numbers in front of you. The restaurant does not always publish a full nutrition guide, so we have compiled the data based on standard USDA estimates and common restaurant preparation methods. Keep in mind that actual values can vary based on the chef and the exact cut of meat.
Here is what you need to know before you go.
Calorie Counts For Signature Steaks
The steaks are the main event, but they are not all created equal. The calorie count depends heavily on the cut, the size, and the butter that is brushed on top. Mastro’s is famous for that butter finish, which adds roughly 100-150 calories per steak.
- Filet Mignon (8 oz): Approximately 480 calories without the butter. With the butter, expect closer to 600 calories.
- New York Strip (12 oz): This cut has more marbling. You are looking at about 700 calories for the steak alone. Add 150 for the butter.
- Ribeye (16 oz): The ribeye is the highest in fat. This cut will run you about 1,100 calories. The butter on top brings it to 1,250 calories.
- Filet Oscar: This adds crab and bearnaise sauce. The sauce alone is around 250 calories, bringing the total to roughly 850 calories.
- Bone-In Ribeye (22 oz): This is a massive cut. You are consuming close to 1,500 calories before you even touch the sides.
If you are watching your fat intake, the filet is your best bet. If you are looking for flavor, the ribeye is the winner, but it comes at a high caloric cost.
Buttery Sides And Their Hidden Calories
This is where the calories really start to add up. The sides at Mastro’s are designed for sharing, but they are cooked with heavy cream and butter. A single serving can easily exceed 400 calories.
Here are the numbers for the most popular sides:
- Mastro’s Steak Cut Potatoes: These are fried and tossed with garlic and parsley. A single serving has about 450 calories. The whole order serves two to three people.
- Mashed Potatoes: These are whipped with heavy cream and butter. One serving is roughly 380 calories.
- Creamed Spinach: Do not be fooled by the vegetable name. This side is loaded with cream and cheese. A serving has around 320 calories.
- Macaroni and Cheese: This is a rich, baked version. Expect about 520 calories per serving.
- Grilled Asparagus: This is the safest option. Without the hollandaise sauce, it is only about 60 calories. With the sauce, it jumps to 200 calories.
- Broccolini: Sauteed in garlic and oil, this comes in at about 150 calories per serving.
You can easily consume over 1,000 calories just in sides. If you are sharing with the table, you will be fine. If you are eating them all yourself, you will blow past your daily budget.
Salad And Appetizer Nutrition Facts
It is tempting to start with a salad to “save” calories. However, the salads at Mastro’s are loaded with cheese, nuts, and heavy dressings. They are not low-calorie options.
- Mastro’s Chopped Salad: This is a popular starter. It has gorgonzola, bacon, and a vinaigrette. A full order has about 680 calories. Ask for the dressing on the side to save 150 calories.
- Caesar Salad: The traditional version has about 470 calories. The anchovies add a bit of protein but also sodium.
- Jumbo Lump Crab Cake: This appetizer is fried and served with a remoulade sauce. It is about 540 calories for the single cake.
- Spicy Tuna Tartare: This is a lighter option at around 350 calories. The wonton chips add about 100 calories to that total.
- Bacon Wrapped Scallops: You get three scallops per order. Each one is about 180 calories, so the total is 540 calories.
If you want to keep your appetizer under 300 calories, go for the tuna tartare without the chips. Avoid the chopped salad if you are trying to save room for dessert.
Desserts And Beverages
The dessert menu is famous for the Butter Cake. This is a massive portion that is meant to be shared. It is also a calorie bomb.
- Mastro’s Butter Cake: This is the signature dessert. It is served warm with a scoop of vanilla ice cream. The entire dessert has about 1,200 calories. If you split it four ways, you are looking at 300 calories per person.
- Chocolate Mousse: This is lighter than the butter cake but still rich. It has about 650 calories per serving.
- Cheesecake: The classic New York style cheesecake has about 700 calories per slice.
For beverages, you need to be careful with the cocktails. The martinis are strong and often contain sugary mixers.
- Mastro’s Martini: This is a large pour. It has about 250 calories per glass.
- Old Fashioned: This has about 180 calories due to the sugar and bitters.
- Glass of Red Wine: A standard 5 oz pour has about 125 calories.
Stick to wine or spirits with zero-calorie mixers if you are counting.
How To Order A Lower Calorie Meal
You do not have to skip Mastro’s entirely to stay on track. There are a few simple swaps you can make to cut your meal’s calorie count in half.
Follow these steps for a smarter order:
- Skip the bread basket. The sourdough bread with butter is about 300 calories before your meal even starts.
- Order your steak “dry.” Ask them to hold the butter on top. This saves you 100-150 calories immediately.
- Choose the filet. It is the leanest cut on the menu. The 8 oz filet is the best portion size for calorie control.
- Get a double order of asparagus. Ask for it steamed without the oil or butter. This will fill you up without breaking your calorie bank.
- Ask for sauces on the side. Whether it is bearnaise or the peppercorn sauce, keeping it on the side lets you control how much you eat.
- Share everything. Split your steak and your sides with a dining partner. This is the easiest way to cut your intake in half.
By following this plan, you can have a satisfying meal for around 700-800 calories total. That is very doable if you eat light earlier in the day.
Macros For Keto And Low-Carb Diets
Mastro’s is actually a great place to eat if you are on a keto diet. The steak is pure protein and fat, and you can skip the sugary sides.
Here is a breakdown of the macros for a standard meal:
- 8 oz Filet (no butter): 480 calories, 35g protein, 0g carbs, 38g fat.
- Grilled Asparagus: 60 calories, 6g protein, 6g carbs, 2g fat.
- Side Salad with Blue Cheese Dressing: 250 calories, 4g protein, 8g carbs, 22g fat.
That entire meal is about 790 calories with 45g of protein and only 14g of net carbs. It fits perfectly into a standard keto macro budget.
If you are not doing keto but just want to watch your carbs, avoid the steak cut potatoes and the mac and cheese. Those two sides alone have over 80g of carbs combined.
Frequently Asked Questions
Here are some common questions people have about the nutrition at this location.
What Is The Lowest Calorie Steak At Mastro’s?
The 8 oz Filet Mignon is the lowest calorie option. Without the butter topping, it is around 480 calories. This is the leanest cut available.
Does Mastro’s Have A Gluten Free Menu?
Yes, they do. Most of the steaks are gluten-free. You need to avoid the soy sauce in the marinades and the breaded items. The mashed potatoes and creamed spinach are also gluten-free.
How Many Calories Are In The Mastro’s Butter Cake?
The full Butter Cake dessert has approximately 1,200 calories. It is meant for sharing, so splitting it among four people is the best way to enjoy it without overdoing it.
Can I Ask For Nutrition Information At The Restaurant?
Yes, you can ask your server. They have a binder with allergen and nutrition info. However, the info is not always printed on the main menu. It is best to ask before you order.
Is The Steak Cut Potatoes A Large Portion?
Yes, the portion is very large. It is served in a skillet and can easily feed three people. If you are eating alone, you are likely consuming over 900 calories if you finish the whole thing.
Final Thoughts On Dining Here
Dining at Mastro’s does not have to ruin your diet. The key is to be prepared and make smart choices. The steak is high in protein, which will keep you full. The sides are where the hidden calories are, so be very careful with those.
You can enjoy a great meal here for under 1,000 calories if you follow the tips above. Skip the appetizer, order your steak dry, and choose a green vegetable for your side. Save the Butter Cake for a special occasion and share it with the whole table.
Remember that the nutrition facts are estimates. The actual calorie count can change based on how the kitchen prepares your food. If you are strict about your macros, ask your server to have the kitchen prepare your steak with no oil or butter at all.
This is a splurge restaurant, so it is okay to enjoy yourself. Just be aware of what you are eating. A little bit of planning goes a long way. You can walk out of there feeling satisfied, not stuffed and guilty.
Enjoy your meal at Mastro’s in Costa Mesa. Use this guide to make the best choices for your health goals. The food is excellent, and now you know exactly how to navigate the menu like a pro.