Add spaghetti to salted, boiling water.
Heat avocado oil in pan and brown spicy Italian sausage and ground beef.
Once cooked, remove sausage and beef from pan using a slotted spoon. Retain juices and add butter.
Add onion, carrot and celery. Sauté for 5-7 minutes. Add garlic and sauté another 2 minutes.
Add tomato paste and mix well. Add sausage and beef back to pan, stir.
Pour in vodka, mix and deglaze pan.
Add tomato sauce, stir. Add heavy cream and incorporate well.
Season with salt and pepper to taste. Add 1/4 cup of the parmesan cheese.
Place serving of pasta into sauce and mix well. Remove pasta from pan and plate, topping with additional sauce mixture.
Top with additional parmesan cheese to taste and serve.