My favorite easy salsa is just: tomatoes, garlic, cilantro, a hot pepper or two of any kind, teaspoon of honey, lime juice, white onion. Blend or chop, depending on what consistency you like.
I too have way many tomatoes right now! We've done a couple of batches of salsa, tomato sauce, tomato paste, tomato bisque, a few curry dishes, and still have dozens left over!