BBQ Chicken Pizza

2-3 Boneless Skinless Chicken Breast (season with salt, pepper, anything else you like)
1 Onion, diced or cut into 1" sized strips
1-2 Cups sliced mushrooms
1 Cup Your favorite BBQ Sauce
2-3 Cups Cheddar Cheese
1 Large Pizza Crust ( I used 2 of the boxed mixes and make one large cookie sheet sized crust)

Cook chicken over medium heat.  When chicken is getting close to done, slice chicken in 1/4" slices and put back in pan over med heat.  Add onions and mushrooms and about 3 Tablespoons of butter.  Cook chicken and onions until onions are tender and translucent. 

While chicken is cooking, prepare crust as per box directions.  Bake crust for 3 minutes at 425 degrees F.  Take out of oven and spread BBQ sauce evenly over crust. Spread chicken/onion/mushroom mixture evenly over sauce then top with cheese.

Bake for another 10-15 minutes.