1 onion
1 tomato
1 green pepper
2-3 cloves garlic
1/2 tsp. oregano
2 slices ham (optional)
1 tsp. capers (optional)
Water

Puree all ingredients in blender, starting with tomato. Add water, if needed for easier blending. Cook mixture over low heat for 30 minutes. Can be refrigerated up to 3 weeks or frozen.