Flank Steak


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Select Your Type of Beef: Steakhouse
Size: 1.25 - 1.49 lbs
1 item left

Our Flank Steaks come one to a package.

Flank Steak is a lean and boneless cut that is full of beef flavor. This versatile cut, also known as London Broil, is best when marinated and grilled or sliced thin and used as part of stir-fry.

Flank Steak comes from the Flank Primal, which is located directly below the Loin. These coarse cuts are lean and full of flavor and are always sliced against the grain to maximize flavor and texture.

What is the difference between Organic Grass Fed & Finished and Steakhouse Beef? 

USDA Organic Grass Fed & Finished Beef 

Certified USDA Organic cattle are raised on 100% Organic Grass from ween while grazing in open pastures, never in a feed lot. Very lean beef with little to no fat content.  Always Antibiotic and Hormone free. 


Prosper Steakhouse Beef

Cattle are fed an optimized mixture of Grass, Organic Grass, Corn and Distillers Corn Grain. Raised and marketed for high end steakhouses, you can enjoy the same top notch quality at home from Prosper Meats with our Prosper Steakhouse cuts. Always Hormone free.

Click here to learn more about how our cows are raised. 

Questions? Click here to check out our FAQ page. 


Tequila Fajitas

1 3/4 - 2 pounds flank steak, cut in half lengthwise
2 limes
1/2 cup tequila
3 garlic cloves, chopped
5 tablespoons olive oil
3 jalapeño peppers, cut in half lengthwise and seeded
8 flour tortillas
1 pint grape tomatoes, halved and/or 2 ripe avocados, diced
3 tablespoons Triple Sec
1/4 cup minced cilantro

1. Zest limes; reserving zest for later. Juice limes.

2. Combine tequila, lime juice, garlic and 3 tablespoons olive oil (2 tablespoons will be used later). Marinate steak in a zipper-locking plastic bag 2 to 4 hours in the refrigerator.

3. Preheat grill to high. Remove steak from marinade, discard marinade. Season steak with salt and pepper. Grill or broil steak to desired doneness. Let steak rest 5 minutes and slice thinly across the grain.

4. Grill jalapeños flesh side down until charred and slightly soft; mince and combine with beef.

5. Wrap tortillas in foil and place on top shelf of closed grill to warm.
Combine tomatoes/avocados, reserved lime zest and Triple Sec. Heat remaining olive oil in large sauté pan.

6. Turn off heat, add tomato mixture and toss gently. Add beef mixture and cilantro; toss gently to combine. Add salt and pepper to taste and serve immediately with warm tortillas.

Customer Reviews

Based on 11 reviews
david h.
Love Prosper - But Watch Your Cuts

My last order (I usually get 20 or more filets) had a couple cuts that had a lot more fat on them than usual. I still love Propser and their service and quality overall is top notch, maybe this was just a lesser cow!

The best

Consistently excellent

Best steak ever!

We love these guys

Marinate overnight then grill

I use a marinade with olive oil, garlic, parsley, red wine vinegar, salt, pepper and a healthy dose of cumin. Grill med rare to rareish and slice thin. Hot for dinner and leftovers cold cut up on a salad for lunch.



Excellent Flank Steak

Best tasting grass fed/finished flank steak we've ever had and we've tried many. Great prices as well! So happy to have found Prosper.

Flank Steak

Made excellent fajitas!!!

Quality beef

We love using flank steak for fajita meat. Prosper flank is lean and perfect for marinating!

Great meat at competitive pricing

We use the flank steak to make Chinese food stir-fry, and the flavor and texture of the meat is the best we can find in Colorado. Plus, Prosper Meats is quick to ship and great to deal with.


I love the flank steak. It's hard to get because it goes fast but it's worth the wait.