1 very ripe avocado,
4 mini plum tomatoes,
1/4 onion (or less, if you don't like onion taste),
1 tablespoon of lemon juice,
1/2 teaspoon sea salt,
1/2 teaspoon black pepper.
Blend everything in a food processor. Serve with tortillas or Doritos ! Cheap, easy, healthy and fresh ! :) enjoy!