Preheat the oven to 400°F.
In a large 9x11 glass baking dish, toss grape tomatoes, quartered baby potatoes, bell peppers, and red onion with one tablespoon olive oil and chopped garlic.
Mix well until incorporated. Sprinkle with salt and pepper to taste.
Place the sausage links on top of the vegetables. Place sprigs of thyme throughout the dish. Cover with foil and bake for 60 minutes.
Remove tinfoil from baking dish, mix vegetables around, and bake for an additional 30 minutes until sausage is golden brown. (*You may need to turn the sausage to prevent from burning). Serve immediately.
Serving: 1cup | Calories: 503kcal | Carbohydrates: 22g | Protein: 19g | Fat: 38g | Saturated Fat: 13g | Cholesterol: 85mg | Sodium: 830mg | Potassium: 905mg | Fiber: 4g | Sugar: 5g | Vitamin A: 1938IU | Vitamin C: 82mg | Calcium: 47mg | Iron: 2mg