Heat oil in a large skillet over medium high heat. Sprinkle chicken breasts with salt, pepper, & garlic powder (light on salt). Brown chicken on both sides - just brown them on the outside, the insides will be raw. Combine cream cheese and soups in the slow cooker, add chicken breasts, and top with mushrooms. Slow cook high 4 hours, or low for 6 hours.

Prepare egg noodles according to package, and serve chicken & sauce over the noodles.