Pour about 1/3 of the BBQ sauce into the bottom of a slow cooker. Lay chicken breast on top and pour remaining sauce on top. Cook on low for 7-8 hours or until chicken shreds easily with a fork.
Pre-heat oven to 400 degrees. Line a baking sheet with aluminum foil or SILPAT. Set aside.
Toss chopped sweet potatoes with olive oil and Oh My Spice seasoning. Arrange in a single layer on baking sheet. Bake for 20 minutes.
Divide chicken, sweet potatoes, celery, and hummus evenly into 4 containers.