Mix the red onion, tomatoes, bell pepper, jalapeno chili, lime juice, EVOO, sea salt and pepper. Mix well. Taste and add salt as needed.
This is a fresh salsa so it won't last very long. Fortunately I find it delicioius and eat it straight from the bowl!
Notes
*This is a very spicy salsa, even with the substitution of a green pepper for a jalapeno. You can substitute the jalapeno for a less hot chili, such as a Poblano. Or eliminate them all together and use a whole bell pepper.