Ingredients

• 1 pound lean ground beef
• 1/2 large green bell pepper, finely chopped
• 1/2 onion, finely chopped
• 1 tablespoon Worcestershire sauce
• 1 tablespoon soy sauce
• 1 tablespoon yellow mustard
• 3 cloves garlic, minced, or more to taste
• 1 teaspoon dried oregano
• 1 teaspoon salt
• 1 teaspoon ground black pepper
• 2 tablespoons vegetable oil
• 4 slices Cheddar cheese (optional)
• 1/2 cup ketchup
• 1/2 cup mayonnaise
• 4 oval-shaped Portuguese rolls, split
• 1/2 head cabbage, finely sliced
• 2 tomatoes, sliced
• 1/2 onion, thinly sliced

Instructions

1. Mix ground beef, green bell pepper, finely chopped onion, Worcestershire sauce, soy sauce, yellow mustard, garlic, oregano, salt, and pepper together in a large bowl. Form mixture into 4 patties that will fit inside the rolls.
2. Heat vegetable oil in a large skillet over medium-high heat. Cook patties until browned on the bottom, about 6 minutes. Reduce heat to medium-low and flip; cook for 4 minutes. Top each patty with a slice of Cheddar cheese; cook until cheese starts to melt, about 2 minutes. An instant-read thermometer inserted into the center of each patty should read 150 degrees F (66 degrees C) for medium-well.
3. Mix ketchup and mayonnaise together in a small bowl. Spread evenly over both sides of each bun. Transfer a patty to each bun; top with sliced cabbage, tomatoes, and onion.