Heat a large skillet or grill pan over medium heat.
Add the Italian sausage links and cook, turning occasionally, until browned and cooked through, about 12-15 minutes. Ensure they reach an internal temperature of 160°F (71°C).
Remove from the skillet and set aside.
Prepare the Peppers and Onions:
In the same skillet, add olive oil over medium heat.
Add the sliced bell peppers and onions to the skillet.
Season with salt and pepper to taste.
Cook, stirring occasionally, until the peppers and onions are softened and slightly caramelized, about 8-10 minutes.
Assemble the Hoagies:
Preheat the oven to 350°F (175°C).
Place the hoagie rolls on a baking sheet.
If using, place a slice of provolone cheese on the bottom half of each roll.
Place a cooked Italian sausage link on top of the cheese.
Spoon the sautéed peppers and onions over the sausage.
Add Marinara Sauce:
Pour marinara sauce evenly over each sausage and pepper assembly.
Finish in the Oven:
Place the baking sheet in the preheated oven.
Bake for about 5-7 minutes, or until the cheese is melted and the hoagie rolls are lightly toasted.
Serve:
Remove from the oven and sprinkle with chopped fresh basil for garnish.
Close the hoagie rolls and serve hot.
Enjoy your Italian sausage hoagies with a side of potato chips, fries, or a crisp salad for a delicious and satisfying meal!
