Garlic Butter Beef and Spinach Tortellini

Garlic Butter Beef and Spinach Tortellini
Ingredients:
1 lb (450g) ground beef
1 teaspoon Italian seasoning
1 package (20 oz) refrigerated cheese tortellini
1 cup beef broth
1/2 cup grated Parmesan cheese
3 tablespoons unsalted butter
3 cloves garlic, minced
2 cups fresh spinach, chopped
1/2 teaspoon red pepper flakes (optional)
Salt and black pepper to taste
1 tablespoon olive oil
Directions: