Roast Beef Hero Sandwich

Prep: 15 min Cook: 20 min Serves: 4 Cuisine: American

A hearty roast beef hero sandwich featuring sliced roast beef, Swiss cheese, and flavorful olive-onion spread, perfect for satisfying lunches or casual dinners with bold tastes.

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Ingredients

  • 16 oz. loaf French bread
  • 2 Tbsp. mayonnaise
  • 1 tsp. mustard
  • 1/4 c. chopped ripe olives
  • 1/4 c. chopped purple onion
  • 1 lb. sliced roast beef
  • 8 oz. sliced Swiss cheese

Instructions

  1. Heat the French bread according to package directions.
  2. Slice the bread horizontally in half.
  3. Combine mayonnaise, mustard, chopped olives, and chopped purple onion to make the spread.
  4. Spread the olive-onion mixture on the cut sides of the bread.
  5. Layer sliced roast beef and Swiss cheese on the bottom half of the bread.
  6. Cover with the top half of the bread.
  7. Cut the sandwich into 4 pieces.
  8. Bake at 400°F for 20 minutes until heated through and cheese is melted.

Tips & Substitutions

For a more intense flavor, consider adding a splash of Worcestershire sauce to the olive-onion spread. You can substitute the Swiss cheese with provolone or cheddar if preferred. For a lighter version, use Greek yogurt instead of mayonnaise. If you want extra crunch, add some arugula or spinach to the sandwich layers.

Serving Suggestions

Serve the roast beef hero sandwich with a side of crispy potato chips or a fresh green salad for a balanced meal. A tangy pickle or coleslaw can also complement the flavors. This sandwich pairs beautifully with Pot Roast With Dill Pickles for a hearty meal experience.

Storage & Reheating

Leftover roast beef hero sandwiches can be stored in an airtight container in the refrigerator for up to 2 days. To reheat, wrap the sandwich in aluminum foil and bake at 350°F for about 10-15 minutes, or until warmed through. This helps to keep the bread from getting too crispy.

Nutrition & Diet Analysis (per serving)

Each serving of Roast Beef Hero Sandwich contains roughly 1081 calories, with 19g protein, 64g carbohydrates, and 85g fat. It is an excellent source of protein (37% of the Daily Value) and vitamin A (27% of the Daily Value), and a good source of iron. Note that it is relatively high in sodium, at 730mg per serving (32% of the Daily Value).

1081 kcal 54% DV
Protein Fat Carbs

Macronutrients

Protein 18.6g 37% DV
Total Fat 84.6g 100% DV
Carbs 63.7g 23% DV
Fiber 2g 7% DV
Sugar 0.3g 1% DV

Electrolytes

Sodium 729.7mg 32% DV
Potassium 185.6mg 4% DV
Cholesterol 124.8mg 42% DV

Vitamins & Minerals

Vitamin A 246.7mcg 27% DV
Vitamin C 5.7mg 6% DV
Calcium 68.3mg 5% DV
Iron 2.9mg 16% DV
Contains Milk Egg Wheat/Gluten

Estimated from ingredients & per-serving nutrition — verify against package labels for allergies or strict diets.

* % Daily Values based on a 2,000 calorie diet (FDA 2020).

Frequently Asked Questions

Can I make the spread ahead of time?

Yes, you can prepare the mayonnaise, mustard, olives, and onion mixture a day in advance. Store it in an airtight container in the refrigerator. This allows the flavors to meld together for a more robust taste when you assemble the sandwich.

Can I use a different type of bread?

Absolutely! While French bread gives a nice crusty texture, you can use hoagie rolls, ciabatta, or even whole grain bread for a healthier option. Just adjust the baking time according to the bread type to ensure it's heated through without becoming too hard.

Is this sandwich suitable for meal prep?

Yes, this roast beef hero sandwich is great for meal prep! You can assemble the sandwich without baking it and store it in the fridge. When ready to eat, just bake it for a fresh, warm sandwich. It's a convenient option for quick lunches during the week.

Nutrition is estimated from USDA FoodData Central ingredient data and may vary with brand, portion and preparation — see our methodology. This information is for general educational purposes only and is not medical or dietary advice (disclaimer).

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