Burgers with peppers and sausages

Ingredients:

• 450 g lean ground beef
• 225g hot or sweet raw Italian sausage, casing removed (ground pork with Italian spices)
• 4 potato hamburger buns, split lengthwise
• 4 slices provolone cheese
• 1/4 teaspoon dried oregano
• Coarse salt and freshly ground pepper
• 1 red onion, sliced ​​1/2 cm thick.
• 2 bell peppers (red and yellow), cut into 1.2cm wide strips.
• 2 tbsp extra virgin olive oil, plus more for greasing
• 1 clove of garlic, grated
• 4 large sheets basilica, torn into pieces
• Warmed marinara sauce for topping
  (recipe marinara sauce)
• Potato chips for serving

Preparation:

1. In a medium bowl, combine ground beef, sausage, garlic, oregano, 1/4 teaspoon salt, and a few grinds of pepper. Mix with your hands. Form into 4 patties, 2 cm thick. Set aside.
2. Heat a grill pan or grill to medium heat. In a bowl, combine the onion, bell pepper, olive oil, 1/4 teaspoon salt, and a few grinds of pepper.
   
   Grill the vegetables, turning occasionally, for 7 minutes, until tender and lightly golden. Transfer to a plate and set aside.
3. Brush a grill pan with olive oil. Add the patties and cook for 4 minutes per side, until cooked through and golden brown. Two minutes before done, top with 1 slice of cheese and cover with a lid.
4. Serve the burgers on buns, topped with the onion and bell pepper mixture, basil, and marinara sauce. Serve with chips.