"too lazy to go to the store" tomato sauce

My mom's garden has infinity tomatoes right now so I've been trying to use them up! I made gallons of chili and some salads and stuff and then I thought: pasta sauce?! So I looked up some recipes online and they all called for basil and oregano and whatnot, which I don't usually keep on hand because... I don't really make Italian food that much. And, as the title implies, I was too lazy to go to the store.

6 tomatoes
1/4 cup olive oil
4 chopped cloves of garlic
1 diced onion
1 tsp garlic powder
salt & pepper

I chopped the tomatoes and cooked them in the oil for like 15 minutes. And then I threw in everything else and simmered it for another 15 minutes.

And then I ate it with some whole wheat penne pasta and it was yummy! Oregano? Basil? Who needs 'em?? Another time I ate this over some couscous and it was good. Another time (this recipe made a lot) I sauteed a zucchini and some mushrooms and put sauce over it and it was also good.