1 lb fettuccine
3 T olive oil
1 medium red onion, sliced
1 clove garlic, smashed
4 hot Italian sausages, casings removed
1 pint cherry tomatoes
2 T red wine vinegar
3/4 t kosher salt
1/4 t black pepper
1/2 cup fresh basil leaves, torn
1 cup baby spinach
1/4 cup Parmesan

Cook the fettuccine according to package directions, Drain and set aside. Meanwhile, heat the oil in a large saucepan over medium-high heat. Add the onion and garlic and cook until the onion softens, 2-3 minutes. Add the sausage and cook about 5 minutes, crumbling as it cooks. Add the tomatoes and cook until the skins burst, about 8 minutes. Stir in the vinegar, salt and pepper. Add the cooked fettuccine, basil and spinach and toss gently to combine. Top with the Parmesan.