Spinach Tortellini Tomato Soup

INGREDIENTS

2 tbsp

olive oil

1 tbsp

butter

yellow onion (, chopped)

3 cloves

garlic (, finely chopped)

2 cans

((14.5-ounces each) Italian Diced Tomatoes with Basil, Garlic and Oregano)

4 cups

tomato/spaghetti sauce

4 cups

vegetable broth

package ((12-ounces) frozen tortellini)

bag ((10-ounces) fresh baby spinach)

salt and fresh ground pepper (, to taste)