Use a grater or shredding attachment on a food processor to shred the zucchini, squash and red onion.
Place a large cast iron skillet over medium heat, add bacon fat and minced garlic, then add the zucchini, squash and onion.
Let vegetables cook down until soft, then add 1/2 tablespoon cumin and coriander, 1 teaspoon of smoked paprika and cayenne pepper and a bit of salt and pepper to the vegetables and mix around to coat.
Then add the diced tomatoes.
Place ground beef in a bowl along with the rest of the spices and some salt and pepper. Form into meatballs. I made 9 meatballs with the pound of meat.
Press each meatball into the vegetable mixture.
Place in the oven and bake for 25-30 minutes, until meatballs are cooked through.