In a large dutch oven or saucepan over medium-low heat, melt the butter and oil. Add mushrooms and onions. Drizzle balsamic vinegar over the veggies. Cook until soft.
Add ground sausage and ground turkey/beef. Cook until browned. Add minced garlic and cook until fragrant.
Stir in diced tomatoes, tomato sauce, chicken broth and Italian seasoning blend. Bring to a low simmer.
Add broken up lasagna noodles and cook until tender. Stir in parmesan cheese.
When done, serve lasagna soup with a dollop of ricotta cheese and freshly grated parmesan cheese. Enjoy!
Slow Cooker Instructions:
When you get to step 3, transfer to a slow cooker and finish for 3-4 hours on high. During the last 30 minutes add lasagna noodles.