Quantities are approximate. Can add/remove per what is readily available.
2T olive oil
1/2 red onion
1/2 green bell pepper
3 garlic cloves
1/2 bunch cilantro
4 roma tomatoes
Roughly chop all veggies. Cook onions in oil until translucent, about 5 minutes. Add bell pepper and garlic, cook an additional 5 minutes. Add cilantro and tomatoes and cook 5 minutes. Remove pan from heat and allow to cool. Add contents of pot and 2C water to a food processor. Process until mixture is well blended, with some chunks remaining. Also ok to skip the food processor step, broth will just have large chunks.
Use in soups/stews, beans, and marinades.