Bring a pot of salted water to a boil and cook spaghetti until al dente. Drain and set aside.
In a large pot over medium-high heat, add olive oil to pan. Brown your sausage and ground beef in the pan using a wooden spoon to crush up the pieces.
Add your onion, garlic and bell pepper to the pan. Cook for 3 -4 minutes, then add tomato paste, sugar, garlic, onion, oregano, basil, and cayenne pepper to the pan. Stir until combined.
Deglaze the pan with water and crushed tomato and bring sauce to a simmer. Let simmer for 30 minutes.
Taste sauce for final seasoning, then mix in the cooked spaghetti and cheese. Toss to combine and enjoy.