Preheat the oven to 400°F. Add all ingredients including 1 pound fully cooked sausage links, 3 bell peppers, any color, and 1 large red onion to a large baking sheet. Toss with 3 tablespoons olive oil, 1 tablespoon Italian seasoning, and 1 ½ teaspoon sea salt.
Arrange all vegetables and sausage in one layer on the sheet pan so they are all spread out in single layer. Cut 1 lemon into wedges and tuck throughout the baking sheet.
Roast for 30 minutes or until vegetables are cooked to your preferred tenderness. Broil on high the last 4 minutes until golden, if desired. Remove from oven and carefully squeeze the lemon wedges over the vegetables and sausage. Toss gently and transfer to serving platter.
Notes
Storage: Store leftover oven baked sausage and peppers in an airtight container in the refrigerator for up to 4 days. To reheat, transfer to a small skillet and warm over medium heat, stirring occasionally. You may need to add a splash of water or broth to loosen it up. To freeze: Freeze in a freezer-safe container for up to 3 months. Thaw overnight in the fridge and reheat in a skillet over medium heat. Helpful Tips:
Promote even cooking: Arrange the sausage and veggies in a single layer on the baking sheet to ensure even roasting. Overcrowding the pan can cause steaming rather than roasting.
Italian seasoning adjustment: If you don't have this blend on hand, use 1 teaspoon of dried basil, 1 teaspoon dried oregano, ½ teaspoon garlic powder, and ½ teaspoon dried thyme.
Cut at a bias: Cut the sausages diagonally to expose more surface area to the sheet pan so it caramelizes and browns nicely. I also like to set the oven to broil the last 5 minutes of cooking to get golden brown crispy edges.
Lemon squeeze: Roasting the lemon wedges brings out a deeper, roasted citrus flavor. Don't forget to squeeze the lemon directly over the bell peppers and sausage for that extra touch.
Troubleshooting:Sausage not browning? Make sure to keep the oven temp high at 400°F and cut the sausage at a bias (diagonally) to give it more surface area to touch with the baking sheet and being exposed to hot air. Overcooked veggies? Keep the peppers and onions large so they roast at the same time as the sausage. You don't want mushy bell peppers.
The information shown above is an estimate provided for your convenience by an online calculator. It should not be considered as a substitute for a professional nutritionist's advice. Please see our complete Nutritional Information Disclaimer.