Creamy tomato spinach pasta

This is a random recipe I tried that is really yummy. Its great for when you don't have time to defrost meat and was really quick to throw together. Sorry there is no picture, Im not that tech savvy :)

1 Tbsp olive oil
1 small onion
2 cloves garlic
1 15oz can diced tomatoes or 2 large tomatoes, diced
1/2 tsp dried oregano
1/2 tsp dried basil
pinch of red pepper flakes
1/4 tsp freshly ground pepper
1/2 tsp salt
2 1/2 Tbsp tomato paste
1/2 cup water
2 oz cream cheese
1/4 cup grated parmesan
1/2 lb bowtie or penne pasta
1 1/2 cups of fresh spinach (I left this out and just did a spinach salad on the side)
*I also added a cup or so of sliced mushrooms

Cook the pasta according to package instructions. Drain and set aside. Add olive oil, minced garlic and diced onion (and mushrooms if desired) to a large skillet over medium-low heat. Cook for a few minutes, until softened and transparent. Add tomatoes, oregano, basil,  red pepper flakes, salt, and pepper to the skillet and stir to combine. Add the tomato paste and water and stir well. Turn the heat down to low. Cut the cream cheese into a few pieces and add them to the skillet, whisking them into the sauce until melted. Add the Parmesan and whisk until melted in. Add the fresh spinach and gently stir into the sauces until it has wilted. Add the pasta and stir until well coated in the sauce. Serve warm.