In a small saucepan over medium heat saute onion, garlic, bell pepper, and thyme in olive oil until tender. Set aside to cool.
Combine ground beef, sauteed veggies, zucchini, egg, oats, tomato paste, and all spices in a large bowl. Using your hands, mix well until all ingredients are well incorporated.
Place meatloaf onto a sheet pan in a 1 inch thick flat layer. Top with ratatouille spreading out evenly. Lay cheese slices on top of ratatouille. Carefully roll meatloaf up, working loaf away from your body until perfectly rolled into a loaf shape. You will need to do some repair work, pat the meatloaf and shape together so all of the ratatouille and cheese is inside the loaf.
Bake in a 350° for 40 minutes.
While baking mix together tomato paste, salt, and maple syrup for topping.
Remove meatloaf from oven, top with tomato mixture, increase oven temp to 400° and bake for an additional 15 minutes or until internal temperature reaches 155°.
Remove from oven and allow to rest before serving.
I use grass-fed ground beef for this recipe but I've also made it with ground turkey and that works perfectly fine
The nutrition facts do not include ratatouille, you can find the nutrition information for the ratatouille here
In a pinch, you can use ketchup in place of the tomato maple mixture