Tortellini Soup - Traeger Grills

Ingredients

• 2 Tablespoons extra-virgin olive oil, plus more as needed
• 1 Pound loose mild or spicy Italian sausage
• 1 Medium yellow onion, diced
• 2 Large carrots, peeled and diced
• 3 Large celery stalks, peeled and diced
• kosher salt and freshly ground black pepper, to taste
• 4 garlic cloves, minced
• 2 Tablespoons tomato paste
• 6 Cups homemade or store-bought low-sodium chicken stock
• 1 15-ounce can fire-roasted diced tomatoes
• 2 fresh thyme sprigs
• 8 Ounces refrigerated cheese-filled tortellini
• 1 5-oz bag baby spinach (about 4 cups)
• Freshly grated parmesan cheese, for serving