Italian Sausage, Pepper, and Onion Hoagies

Ingredients

• 1 tablespoon olive oil
• 1 1/2 pounds Italian sausage, cut into 3-inch lengths
• 3 bell peppers, cored and sliced thin
• 1 onion, sliced thin
• 1 tablespoon tomato paste
• 2 garlic cloves, minced
• 1/2 cup dry white wine
• 1/2 cup water
• 1 teaspoon minced fresh oregano, or
• 1/2 teaspoon dried
• 1 tablespoon sherry vinegar
• Salt
• ground black pepper
• 4 submarine sandwich rolls