Add olive oil to a hot skillet and cook, onion, shallots and garlic.

When onion is translucent add the ground turkey, carrots, celery, zucchini and balsamic vinegar and cook until the turkey is done and veggies are nearly done.

Transfer all of the ingredients over to a 9×13 casserole dish

Then smooth the mashed sweet potato over the top forming a layer

Bake at 350 F for about 30 minutes and the mix is bubbling.

Serve.