bearisgray

Maybe start with:

chopped tomatoes
chopped green peppers
chopped mild onion
lemon juice (or lime juice)
salt
sugar - same amount as salt - it enhances the other flavors
black pepper

I've also added minced garlic, chopped zucchini, chopped carrots, and/or chopped cucumbers to this tomato based salsa.

I do like jalapenos and cilantro added to my salsa.

DH likes what he calls the "basic" salsa - tomatoes, green peppers, minced garlic, onions, and jalapenos - seasoned with salt, pepper, and lemon juice.

DS and I like the "enhanced" salsa better.

You might check out the pico de gallo recipes and see if one of them would work.