Step 1: Soften the Veggies
Place the sliced onions and bell peppers in a large microwave-safe bowl. Microwave on high for 8–10 minutes, until soft.
Step 2: Brown the Sausage
Slice the sausages into thin rounds (~¼ inch thick). Coat a large nonstick pan with cooking spray, add the sausage slices, and cook until lightly browned, about 5 minutes. Stir frequently. Transfer to a plate.
Step 3: Sauté the Vegetables
Recoat the pan with cooking spray and add 2 tsp olive oil. Add the microwaved onions and peppers, oregano, basil, salt, and pepper. Cook over medium-high heat, stirring often, until the vegetables are tender and slightly caramelized, about 10 minutes.
Tip: If the pan becomes too dry, add the remaining 1 tsp olive oil and 2 tbsp water.
Step 4: Combine Everything
Add the minced garlic and cook, stirring, for about 1 minute until fragrant. Return the sausage to the pan and stir in the balsamic vinegar. Cook for 2 more minutes until everything is heated through and well combined.
Step 5: Serve
Transfer the sausage, peppers, and onions to a platter. Serve with mustard on the side and toasted bread or rolls, if desired.
