Great homemade Salsa:
2 cans of diced tomatoes
1 jalapeño minced
1/2 bunch cilantro chopped
1 clove of garlic minced
3-4 whole green onion (stem included) chopped up
Couple shakes of red pepper flakes
1 tsp of salt. Blend it all together minus the tomatoes, then add the tomatoes and blend a little to mince the tomatoes.

Add lime juice or it just doesn't taste good.