Preheat oven to 425 degrees.
Use a fork to poke several holes in each sweet potato.
Place potatoes directly on oven rack; bake 1 hour or until potatoes are tender.
Remove from oven; slice in half lengthwise and scoop out center, leaving 1/2 inch of flesh.
In a medium skillet, heat olive oil over medium heat. Add chopped bacon and sliced mushrooms and heat, stirring regularly, 10-15 minutes or until bacon is fully cooked.
Fill sweet potato halves with chicken, shredded cheese, and mushroom + bacon mixture.
Return to oven and bake for an additional 10 minutes.
While sweet potatoes are baking, prepare cheese sauce.