This lasagna soup is everything you love about lasagna in one bowl... it's made with Italian sausage, tender noodles, marinara and lots of cheesy goodness. It's rich, comforting and the perfect one pot dinner for those cold winter nights.
Add oil to a dutch oven or large pot and heat over medium heat. Once hot add onion and red pepper and saute for 5-7 minutes until softened and fragrant. Add garlic and saute for 1-2 additional minutes.
Add sausage, Italian seasoning black pepper and red pepper flakes, if using. Cook for 7-10 minutes until browned and cooked throughout.
Add the tomato paste and stir to combine for 1-2 minutes. Add 2 cups of sauce (16 oz), tomatoes and broth. Bring to a boil.
Once boiling, add noodles then reduce heat to a simmer and cook for 15-20 minutes until noodles are tender.
While the soup is simmering, add the remaining 1 cup of sauce and cottage cheese to a blender and blend until smooth and creamy.
Once noodles are tender add spinach, vinegar and blended cottage cheese mixture. Let simmer for an additional 5 minutes until the spinach has wilted. Taste and adjust seasonings if needed or add additional broth if desired.
Serve hot topped with fresh parmesan, mozzarella and basil. Enjoy!
Notes
Storage: Allow the soup to cool completely before transferring it to an airtight container and refrigerate for 4-5 days. Reheat on the stove, adding extra broth or water as needed, since the noodles will absorb liquid as it sits.