Heat the olive oil or water in a sauce pan over medium heat
Add in the chopped onions and minced garlic and sauté until the onion is translucent.
If using mushrooms, add them to the pot and cook them for about 5 minutes until softened.
Stir in the dried Italian herbs and a good pinch of salt and pepper.
Add in the passata, vegetable broth, dried pasta and stir to combine. Increase the heat and allow the mixture to come to a boil, then reduce the heat to a simmer. Stir the pasta often to keep it from sticking to the bottom of the pan!
Allow the pasta to cook for 10-20 minutes**, depending on the pasta you used. Whole wheat or gluten free pasta will take longer to cook than white pasta. Continue to stir the pasta often to keep it from sticking to the bottom of the pan.
Once your pasta is cooked through, stir in the tahini and the spinach or frozen peas if using. Taste and add more salt if desired.
*To make this recipe gluten free, simply use gluten free pasta! I find some gluten free pastas take longer to cook so keep that in mind. **The pasta will take a little longer than usual to cook as it's having to cook in a thicker sauce.