Roast Beef and Barbecue Onion Sandwich: Main Image

Quick Facts

Nutrition Facts

Calories 306
  Calories from Fat 126 (41%)
(22%)Total Fat 14g
(19%)Saturated Fat 4g
Polyunsaturated Fat 1g
Monounsaturated Fat 8g
(18%)Cholesterol 53mg
(12%)Sodium 293mg
(14%)Potassium 494mg
Total Carbohydrate 26g
(18%)Dietary Fiber 4g
Sugars 5g
Sugar Alcohols 0g
(40%)Protein 20g
* Percent Daily Values are based on a 2,000 calorie diet.
Nutrition facts are calculated by a food expert using nutritional values provided by the USDA for common products used as recipe ingredients. Actual nutritional values may differ depending on the amounts or products used and can be affected by cooking methods.

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Roast Beef and Barbecue Onion Sandwich


  • 1 1/2 cups thinly sliced yellow onions

  • 3 Tbs barbecue sauce

  • 3/4 lb cooked beef, thinly sliced

  • 6 leaves romaine lettuce

  • 1 medium tomato, sliced

  • 1 avocado, peeled and sliced

  • 6 whole grain hamburger buns, split

Make leftover roast beef shine—layer it on a roll with barbecue sauce-laden onions and fresh veggies.


  • Place onion slices in 2-quart, microwave-safe casserole.
  • Cover and microwave on high for 10 minutes or until onions are soft, stirring half-way through cooking time.
  • Stir in barbecue sauce; set aside.
  • Meanwhile layer equal amounts of beef, lettuce, tomato, and avocado on bottom half of each bun. Top with onion relish.

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The information presented here is for informational purposes only and was created by a team of US–registered dietitians and food experts. Consult your doctor, practitioner, and/or pharmacist for any health problem and before using any supplements, making dietary changes, or before making any changes in prescribed medications. Information expires December 2024.