Add your chicken to dish or ziplock bag with the sauce/marinade.
Cut your onions and bell peppers intro strips
Clean and slice your mushrooms
Fire up your griddle on to medium high.
Add avocado oil to the griddle
Season one side of your chicken then lay that side down on the griddle
Season the top of your chicken
Add avocado oil to another part of the griddle
Add your onions and bell peppers in the oil and season with garlic and herb. Turn them every 2-3 minutes to ensure they don't burn.
When the chicken starts to turn white around the edges, flip it over then turn your griddle down to medium.
Add your mushrooms and butter then mix every 2-3 minutes.
When the internal temp of the chicken reaches 165, flip it one more time.
Begin assembling by adding the bell peppers, onions, and mushrooms to cover each of the pieces of chicken.
Top each one with a slice of cheese and cover with a dome to melt the cheese.
Once the cheese is melted, its time to plate and serve.