The Big Beef Sandwich from Portillo's features tender Italian-seasoned roast beef piled high on a toasted French roll, topped with savory au jus and a hint of giardiniera, delivering a hearty and flavorful Italian-American classic.
Equipments
- Oven or Roaster
- Meat Slicer or Sharp Knife
- Saucepan or Small Pot
- Tongs
- Toaster or Oven (for French rolls)
- Ladle (for au jus)
- Cutting Board
- Serving Tray or Plate
Ingredients
- 3 lb (1.4kg) beef top round roast
- 2 tablespoons Italian seasoning
- 1 tablespoon garlic powder
- 1 tablespoon onion powder
- 1 tablespoon salt
- 1 teaspoon black pepper
- 1 teaspoon dried oregano
- 1 teaspoon dried basil
- 1 teaspoon crushed red pepper flakes
- 2 cups beef broth
- 1 cup water
- 1/2 cup dry white wine (optional)
- 4-6 French rolls
- 1 cup giardiniera
- 2 tablespoons olive oil
Your beef top round roast should be well-trimmed and evenly seasoned with Italian seasoning, garlic powder, onion powder, salt, black pepper, oregano, basil, and crushed red pepper flakes to ensure maximum flavor. Using a meat slicer will help achieve thin, uniform slices of roast beef, which is essential for the authentic texture of the sandwich. The au jus requires a blend of beef broth, water, and optionally dry white wine to create a rich, savory dipping sauce that complements the roast beef perfectly. Toasting the French rolls enhances their crunch and prevents sogginess when topped with juicy roast beef and giardiniera. The Big Beef Sandwich from Portillo's copycat menu combines tender, Italian-seasoned roast beef with tangy giardiniera and flavorful au jus on a toasted French roll for a truly classic Italian-American experience.
Instructions
- Instructions:
- Preheat oven to 325°F (163°C).
- Mix Italian seasoning, garlic powder, onion powder, salt, pepper, oregano, basil, and red pepper flakes in a small bowl.
- Rub olive oil and seasoning mix all over the beef roast.
- Place beef in a roasting pan or oven-safe dish.
- Pour beef broth, water, and white wine (if using) around the roast.
- Cover with foil and roast for 2.5 to 3 hours, or until tender.
- Remove beef from oven and let rest for 15-20 minutes.
- Slice beef thinly using a meat slicer or sharp knife.
- Transfer roasting juices to a saucepan; bring to a simmer for au jus.
- Split French rolls and toast in an oven or toaster until golden.
- Layer sliced beef generously onto toasted rolls.
- Top with giardiniera.
- Ladle warm au jus over the sandwich or serve on the side for dipping.
- Arrange sandwiches on a serving tray or plate and serve hot.
Substitution
The Portillo's copycat Big Beef Sandwich relies on Italian-seasoned roast beef and savory au jus for its iconic flavor. When dry white wine is unavailable, you can substitute with additional beef broth or a splash of apple cider vinegar to maintain acidity and depth. If you don't have giardiniera, chopped pickled jalapenos mixed with sliced pepperoncini peppers can provide a similar tangy and spicy kick. Using a sharp knife or meat slicer is essential to achieve thin, even slices of roast beef, ensuring tender bites. Toasting your French rolls enhances texture and helps them hold up against the juicy fillings, offering a satisfying crunch in every bite.
Tips
Make sure to let the roast beef rest for at least 15-20 minutes after cooking to retain its juices and ensure tenderness. When slicing the beef, use a sharp knife or meat slicer to create thin, even slices that are easier to layer and eat. Toast your French rolls just until golden to provide a sturdy base that won't soak up too much au jus and become soggy. Warm the au jus gently in a saucepan and ladle it over your sandwich or serve it on the side so that your Big Beef Sandwich stays flavorful and moist.
Nutritions
The Big Beef Sandwich contains a rich source of protein from the beef top round roast, which supports muscle repair and growth. Italian seasoning and garlic powder add antioxidants, while the beef broth provides essential minerals like iron and zinc. Swiss cheese and French rolls contribute carbohydrates and fats, supplying energy. You can enjoy a balanced meal with this sandwich by pairing it with a side of giardiniera, which offers vitamins and probiotics.
Storage
Store leftover roast beef in an airtight container in the refrigerator within two hours of cooking to maintain freshness and prevent bacterial growth. Wrap toasted French rolls separately in foil or plastic wrap to keep them from becoming soggy. Your au jus should be cooled and stored in a sealed container in the fridge, and reheated gently on the stovetop before serving.
Variation or Alternatives
Try substituting beef top round roast with a chuck roast for a juicier texture or use a slow cooker instead of an oven to enhance tenderness while requiring less active cooking time. Swap dry white wine in the au jus mixture with red wine or Worcestershire sauce for a richer, deeper flavor profile. For a milder taste, replace giardiniera with sauteed bell peppers and onions or add provolone cheese melted on top to elevate the sandwich's creaminess. You can lightly toast your French rolls using butter on the cut sides before toasting to add extra crispness and flavor.
Allergies
The Big Beef Sandwich from Portillo's contains common allergens such as wheat from the French rolls and potential sulfites in the dry white wine and giardiniera. Your allergy concerns should also include garlic and onion powders, which can trigger sensitivities in some individuals. Always check ingredient labels and consult with your healthcare provider to ensure the sandwich is safe for your consumption.
Why this recipe?
People love the Big Beef Sandwich from Portillo's for its flavorful blend of seasoned roast beef, juicy and tender with a perfect balance of savory spices. The sandwich is generously layered with melted cheese and served on a freshly baked Italian roll, creating an irresistible combination of textures and tastes. Your experience making a copycat version offers the chance to enjoy this iconic Chicago-style favorite anytime, crafted to your personal taste preferences. Recreating it at home delivers rich, authentic flavors that stand out from typical sandwiches, making every bite a satisfying indulgence.