Easy Greek spaghetti is made with diced tomatoes, olives, mushrooms, onions, garlic. It's such a wonderful variation from your standard spaghetti.
Half the mushrooms
Sauté the onions. Just before they're done, add the mushrooms. When finished, add the tomatoes and olives.
Mix in sauce with spaghetti.
Top with crumbled feta and a bit of garlic salt.