Soup Base: In your slow cooker, combine 1 (28 oz) can crushed tomatoes, 1 (15 oz) can diced tomatoes, 4 cups vegetable or chicken broth, 1 diced onion, 2 minced garlic cloves, 1 tsp dried basil, 1/2 tsp dried oregano, 1/2 tsp salt, and 1/4 tsp black pepper. Stir these ingredients well to incorporate all the flavors.
Slow Cook: Cover the slow cooker and cook the mixture on low for 6-7 hours or on high for 3-4 hours. This slow cooking time allows the flavors to meld beautifully.
Blend: After the cooking time has elapsed, blend the soup to your desired consistency. You can use an immersion blender for convenience or transfer it to a standard blender. A smoother consistency will yield a creamier soup, while leaving some chunks will provide a rustic feel.
Add Tortellini & Cream: Stir in 1 cup frozen cheese tortellini and 1 cup heavy cream. Cover and cook on high for an additional 20-30 minutes, until the tortellini is tender and the soup is velvety.
Cheddar Toast Bites: While the soup finishes cooking, preheat your broiler. Butter one side of each 4 slices of your favorite bread and place them on a baking sheet. Top the unbuttered side with 1 cup shredded cheddar cheese. Broil for 2-3 minutes or until the cheese is bubbly and golden brown.
Serve: Serve the warm soup hot, accompanied by crispy Cheddar Toast Bites for dipping or savoring alongside!