Preheat oven to 375°F (190°C).
Season chicken breasts with salt, pepper, garlic powder, or paprika if desired.
Place chicken in a greased baking dish. Brush with BBQ sauce and spoon ranch dressing over each breast.
Sprinkle shredded cheddar evenly on top.
Bake uncovered for 25–30 minutes, or until chicken reaches 165°F internally and cheese is bubbly.
Remove from oven and top each piece with crispy fried onions.
Let rest 3–5 minutes before serving.
