Flank Steak with Poblano Sauce

Number of Servings: 6 (189 g)
Active Time: 30 min.
Total Time: 1 hour 30 min
Flank Steak with Poblano Sauce

Flank steak gets a bad rep for being the tough steak on the block, but we’re confident that with the help of this marinade (and, okay, maybe some pre-marinade tenderizing, if you want to go the extra mile), you can wow the stuffing out of your guests at your next barbecue. The thickness and large size of flank steaks also makes them great candidates for a party platter, served up in thin, rare slices that work well as a dish alone or as the main ingredient for steak tacos. Paired with this gorgeous creamy chile sauce that offers miles of flavor and mild heat, you’re looking at a versatile party option that will make you a grilling all-star.


  • Marinade:

    • ½ cup lime juice
    • ½ cup orange juice
    • 1 tsp. cumin
    • 1 tsp. minced garlic
    • ½ tsp. salt
    • ½ tsp. chili powder


    • 1½ lbs. beef flank steak

    Poblano Sauce:

    • 1 poblano pepper
    • 1 tsp. vegetable oil
    • ⅓ cup chopped onion
    • ½ tsp. minced garlic
    • ¼ cup plain, nonfat Greek yogurt
    • ¼ cup low-fat sour cream
    • ⅛ tsp. salt
    • 1 Tbsp. chopped fresh cilantro


  1. Mix marinade ingredients and toss with beef in a freezer bag. Marinate in refrigerator (1-12 hours).
  2. Heat grill to high. Place pepper in center and grill, uncovered. Turn frequently, until skin is charred and blistered on sides. Wrap in foil and let stand until cool enough to handle. Remove and discard skin, stem, and seeds. Chop and set aside.
  3. Heat oil in skillet over medium-high. Sauté onion and garlic until tender (3-4 minutes).
  4. Place onion mixture, pepper, yogurt, sour cream, and salt in food processor and process until smooth. Stir in cilantro and chill while steak cooks.
  5. Remove steak from marinade and place on hot grill. Grill, uncovered and turning once, to a minimum internal temperature of 145ºF (17-21 minutes).
  6. Carve steak across the grain into thin slices. Serve with sauce.

Nutrition Facts

6 servings per container

Serving Size 189 g

Amount per serving
Calories 245
% Daily Value*
Total Fat 12g 15%
Saturated Fat 5g 25%
Trans Fat 0g
Polyunsaturated Fat 1g
Monounsaturated Fat 4.5g
Cholesterol 81mg 27%
Sodium 325mg 14%
Total Carbohydrate 8g 3%
Dietary Fiber 1g 4%
Total Sugars 3g
Includes 0g Added Sugars 0%
Sugar Alcohol 0g
Other Carbohydrate 3g
Protein 27g
Vitamin D 0.1mcg 0%
Calcium 69.9mg 6%
Iron 2.5mg 15%
Potassium 570mg 10%
Vitamin A 47.9mcg 6%
Vitamin C 17.6mg 20%
Vitamin E 0.8mg 6%
Vitamin K 3.9mcg 4%
Thiamin 0.1mg 8%
Riboflavin 0.2mg 20%
Niacin 10.9mg 70%
Vitamin B6 0.8mg 45%
Folate 27.5mcg 7%
Vitamin B12 1.4mcg 60%
Biotin 0.4mcg 2%
Chloride 2.4mg 0%
Pantothenate 0.9mg 15%
Phosphorus 258.5mg 20%
Iodine 0.6mcg 0%
Magnesium 37mg 8%
Zinc 4.5mg 40%
Selenium 28.1mcg 50%
Copper 0.1mg 15%
Manganese 0.1mg 4%
Chromium 0.2mcg 0%
Molybdenum 4.3mcg 10%

* The % Daily Value (DV) tells you how much a nutrient in a serving of food contributes to a daily diet. 2,000 calories a day is used for general nutrition advice.


Beef Flank Steak, Orange Juice, Lime Juice, Reduced Fat Sour Cream (cultured Pasteurized Grade A Milk And Cream, Contains Less Than 1% Of Pectin, Agar, Vitamin A Palmitate, Enzymes), Plain Nonfat Greek Yogurt (skim Milk, Active Bacterial Culture, Vitamin As Palmitate, Vitamin D3), Onion, Poblano Pepper, Soybean Oil, Garlic, Salt, Cumin, Chili Powder, Cilantro.

Latest from Our Blog

Vacation Rental Cooking (And Not Cooking)


Eating out vs. vacation rental cooking—what's the best balance? Our tips can help you eat healthy, save money, and enjoy your time away.

Continue Reading »