Preheat the oven to 400F degrees. Line a baking sheet with a silicone baking mat or foil. Line the baking sheet with tortilla chips. Set aside.

In a medium skillet over medium-high heat, toss the peppers, jalapeños and onions with salt, pepper and olive oil for 5 minutes. You want these soft, but not translucent.

Sprinkle the peppers/onions mixture over top of the tortilla chips. Layer on the shredded chicken and the cheese.

Place in the oven for 5-8 minutes or until the cheese is melted. Remove from the oven and add diced tomatoes and cilantro.

Nachos are taste best when eaten immediately.