Instructions
Prepare the Spinach:Wash the spinach well and dry it thoroughly using a clean towel or salad spinner then chop it very finely to blend smoothly into the meat mixture and avoid sogginessMix the Meatball Base:Combine ground beef chopped spinach garlic breadcrumbs parmesan egg seasoning salt and pepper in a large bowl and mix gently with your hands just until combined so the meat stays tenderCut and Prep the Cheese:Slice the mozzarella block into half inch cubes and pat them dry to help them stay in place during stuffing and cookingShape the Meatballs:Scoop a tablespoon or two of meat mixture flatten in your palm place a mozzarella cube in the center and wrap the meat around it sealing fully then roll gently into a smooth ballCook the Meatballs:Heat olive oil in a large skillet over medium heat until shimmering then add meatballs in a single layer without crowding cook for four to five minutes per side turning gently to brown all sides and cook through
Storage Tips
You can form the meatballs ahead of time and store them in the refrigerator for up to one day before cooking. For longer storage freeze the raw meatballs on a tray then transfer to freezer bags and cook from frozen adding a few extra minutes. Leftovers keep well in the fridge for up to three days and reheat beautifully in the oven or skillet.
Ingredient Substitutions
If you want to switch up the flavor try using ground chicken or turkey instead of beef for a lighter version. Swap in provolone or fontina cheese for a sharper or more buttery center. You can also use dried spinach in a pinch just rehydrate and squeeze out all excess moisture before mixing in.
Serving Suggestions
These meatballs are incredible over spaghetti with marinara sauce but they also shine on their own with dipping sauces. Serve them on toasted rolls for meatball subs or with a side of garlic bread and salad for a complete meal that feels like a night out. They also work great for parties with toothpicks and warm marinara for dipping.
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