Cook bacon (8 ounces) in an oven-safe 12-inch skillet until crispy. Remove to a paper towel-lined plate and set aside. Remove all but 2 tablespoons of bacon drippings from the skillet.
Cook the chicken (4) on medium-high heat, about 5 minutes per side, depending on thickness, or until the chicken is nicely browned and there is no longer any pink.
Preheat oven to 400°F (204°C).
Drizzle chicken with BBQ sauce (1 cup), then sprinkle cheese (1 cup) and bacon. Place skillet in the preheated oven, until cheese is melted.
Remove from oven and top chicken with green onions (1/2 cup), and tomatoes (1 cup) and serve immediately.
Notes
I like to make my Monterey chicken in an oven-safe skillet to cut down on dishes. An iron skillet works great for this because it can go from stovetop to oven and then straight to the table.
You can also be sure there are no hot or cold spots in your skillet. If you don’t have an oven-safe skillet, then simply transfer chicken to a casserole dish after browning and build your recipe.