In a skillet on the stovetop over medium heat, add in extra virgin olive oil and sauté onions and garlic
Add in mushrooms and sauté
Add in a can of diced tomato
Add in a can of tomato sauce
Add in garlic salt, powder, Italian seasoning blend, and stir
Add in fresh basil and cheese and stir
Stir in xylitol or stevia
Emulsify sauce with Immersion Blender (keep the sauce somewhat chunky)
Simmer sauce for 30-40 minutes over low heat