Begin cooking your pasta
While that’s cooking dice the onion and mince your garlic.
Add the onion, garlic, and olive oil to a large skillet and sauté over medium heat until the onions translucent.
Add the diced tomatoes (with juices), oregano, basil, crushed red pepper, salt, and pepper.
Add the tomato paste and a 1/2 cup of water, mix until the tomato paste has mixed into the sauce.
Turn the heat down to low. Add cream cheese and whisk until the sauce is creamy. Add parmesan
Add fresh spinach and gently stir it into the sauce until it has wilted. Add the pasta and stir until it is well coated in the creamy tomato sauce.