Step 1

Preheat oven to 350 degrees Fahrenheit. Spray muffin tin with cooking spray and set aside. Squeeze excess water from spinach and set aside. Add onion, garlic cloves, and parsley to food processor and process until smooth. Set aside. Add ground beef, breadcrumbs, ketchup, eggs, thyme, oregano, salt, black pepper, and food processor mixture to a large bowl and mix with hands until incorporated. Break mixture in half and place half of mixture in muffin tin bottoms. Add spinach and slice of mozzarella cheese in each tin bottom, cover with remaining meat mixture.Make Topping Mixture and cover each mini meatloaf with mixture. Bake in preheated oven for 25-30 minutes or until internal temperature reaches 160 degrees Fahrenheit.

Step 2

Combine ketchup, Dijon mustard, and brown sugar in bowl until incorporated.