- Preheat large non-stick skillet on medium heat and swirl oil to coat. Add onion, garlic and bell peppers; saute until translucent, stirring occasionally. Transfer to a large bowl.
- Preheat oven to 400 degrees F and spray 9″ x 13″ baking dish with cooking spray. Return skillet on medium-high heat and add ground meat. Cook for 7 – 10 minutes, breaking into pieces and stirring occasionally. Transfer to a bowl with cooked vegetables from a previous step. Add remaining ingredients, except 1/2 cup cheese. Stir well and transfer mixture to a prepared baking dish and level with spatula.
- Bake covered for 40 minutes, then sprinkle with remaining 1/2 cup cheese and bake uncovered for another 15 minutes. Serve hot.
Store: Refrigerate in an airtight container for up to 3 days or freeze leftovers for up to 3 months.
Freeze: Assemble, tightly wrap with plastic and then foil, and freeze for up to 3 months. Thaw in the fridge overnight and bake as per instructions + 15 minutes.