Salsa. And you don't even need to cook anything.

Chop up tomatoes, sweet onion, a bit of fresh pressed garlic, lime. That's the base. Then just add whatever else. Peppers, spring onions, cilantro (which I personally don't add because it tastes like soap to me), parsley. Then to taste add a bit of salt, dash of hot sauce. A pinch of sugar can bring things out depending on the tomatoes.

Adding a bit of sour cream and/or avocado right before you eat it gives it an interesting twist.

You can keep it in a mason jar in the fridge for about a week. Probably longer but it never lasts more than a day or two in my house.