Preheat the oven to 375 degrees. Lightly spray the muffin pan with nonstick spray, and set aside.
In a large mixing bowl, combine the ground beef, onion, bread crumbs, tomato sauce, eggs, worcestershire sauce, minced garlic, dried parsley flakes, kosher salt, black pepper and ground mustard seed.
1 pound lean ground beef, ½ cup finely diced sweet yellow onion, ½ cup panko bread crumbs, ½ cup bread crumbs, 8 ounce can tomato sauce, 2 large eggs, 1 tablespoon worcestershire sauce, 2 teaspoons fresh minced garlic, 2 teaspoons dried parsley flakes, 1½ teaspoons kosher salt, ½ teaspoon black pepper, ½ teaspoon ground mustard seed
Using either a large wooden spoon, or gloved hands (I usually choose this option), mix together all the ingredients until they are completely incorporated.
Spoon the ground beef mixture into a standard size muffin pan. Completely fill each muffin cup to the top line of the cup. (I used a 3-tablespoon cookie scoop).
Using a teaspoon, top each muffin with ketchup for the glaze.
¼ cup ketchup for the meatloaf glaze
Bake for 30 minutes.
Video
Notes
Storage:
To Store: Store leftovers in an airtight container in the refrigerator for 2-3 days.
To Freeze: Let the muffins cool completely and place them in a freezer bag. When you are ready to cook, defrost in the refrigerator overnight.
To Reheat: Reheat in the oven at 350 for about 20 minutes. (You can put them back in the muffin tin to help them keep their shape in the oven.)
Tips:
You can use dried stuffing mix or crushed crackers instead of breadcrumbs if you prefer.
You can sneak some veggies into the mix to boost the nutrients in each bite. Finely diced mushrooms, zucchini, broccoli, carrots, and spinach will all stay hidden!
Feel free to add freshly grated Parmesan or Romano cheese to the mixture. Or stuff a small cube of mozzarella or cheddar cheese inside the center of each muffin before baking.
Instead of ketchup, glaze the top of the muffins with chili sauce or bbq sauce.