Ex-Girlfriend s Mom s Salsa Fresca (Pico de Gallo)

1 cup finely chopped red onion

1 jalapeno pepper, seeded and finely chopped - or more to taste

2 limes, juiced

2 ½ cups Roma (plum) tomatoes, seeded and chopped

½ cup chopped fresh cilantro

1 teaspoon salt

Mix red onion, jalapeno pepper, and lime juice in a bowl. Allow to stand for 5 minutes. Mix in Roma tomatoes, cilantro, and salt; allow to stand 15 more minutes for flavors to blend.