Ten items and fifty-five minutes, using the oven and then a pan of sauce.
There is no spinach in the meat here.
Why This Recipe Works
- Mixing just until combined keeps the meatballs tender rather than dense.
- Wrapping the meat fully around each cube stops the cheese escaping.
- Baking browns all sides at once without turning each meatball in a pan.
- Low-moisture mozzarella melts without flooding the meatball with water.
- Five minutes in warm marinara coats them without overcooking.
Ingredient Notes
- Low-moisture mozzarella, cubed
- Six ounces. Low-moisture rather than fresh — fresh mozzarella releases water inside the meatball as it melts.
- Ground beef
- A pound and a half. Beef rather than pork or a mixture, and it reaches 160 degrees Fahrenheit in the oven.
- Marinara sauce
- Three cups. A chunky red sauce, and a component the title never names.
- Garlic bread
- Served alongside. A serving element taken from the photograph rather than an optional extra.
How to Make It
Oven to 400°F
Heat oven to 400°F.
Mixed just until combined
Mix beef, breadcrumbs, egg, Parmesan, garlic, and herbs just until combined.
Wrapped around mozzarella cubes
Wrap the meat mixture around mozzarella cubes and shape into meatballs.
Baked to browned and 160°F
Bake until browned and the centers reach 160°F.
Five minutes in warm marinara
Transfer to warm marinara and simmer 5 minutes.
Parsley, garlic bread — and no spinach
Finish with parsley and serve with garlic bread; do not add spinach to the meat mixture.
What Goes Into One Meatball
These mozzarella-stuffed meatballs have no spinach in the meat - the recipe's own final step says so - so what is in each ball here matters, and so does the order it goes together in.
What goes into one meatball
A cube of LOW-MOISTURE mozzarella - the centre
6 oz cut into cubes. Low-moisture rather than fresh is a structural choice: fresh mozzarella is packed in water and releases it as it melts, which steams the inside of the meatball and can split it open. Low-moisture melts into a WHOLE MELTED CENTRE without flooding it.
The meat, MIXED JUST UNTIL COMBINED
1 1/2 lb of ground BEEF with 1/2 cup breadcrumbs, 1 egg, 1/3 cup Parmesan, 2 cloves garlic and 1 tsp dried Italian herbs. Just until combined is the whole technique: worked further, the proteins tighten and the meatball bakes dense and springy instead of tender.
Wrapped fully AROUND the cube, then shaped
The wrap has to be complete. Any gap or thin patch is where molten cheese finds its way out in a 400F oven, and a meatball that leaks is a meatball with no centre. This is also the step that distinguishes the dish from one where cheese is simply mixed through the mince.
Baked - all sides at once, to 160F
Baking rather than pan-frying, and for a practical reason: a stuffed meatball turned repeatedly in a skillet is a stuffed meatball you will eventually tear. The oven browns every side without touching them. 160F in the CENTRES is the safe temperature, and it is taken before the meatballs go anywhere near sauce.
Five minutes in WARM marinara - to coat, not to cook
3 cups of chunky marinara, already warm, and only 5 MINUTES. The meatballs are fully cooked by this point; the simmer is there to coat them and marry the flavours. Longer and they start to break up in the sauce.
2 tbsp of parsley, and GARLIC BREAD alongside - part of the serving, and not mentioned in the title, along with the marinara itself. Then step 6, stated as an instruction rather than a note: DO NOT ADD SPINACH TO THE MEAT MIXTURE.
Success Tips
- Mix the meat only until it comes together; overworked mince bakes tough.
- Seal the meat fully around each cube or the cheese runs out in the oven.
- Keep the marinara simmer short — five minutes is to coat, not to cook.
Serving Ideas
Six servings of browned meatballs in chunky marinara, one cut open to show the melted mozzarella centre, scattered with parsley and served with toasted garlic bread.
Frequently Asked Questions
Is the mozzarella mixed into the meat?
No. It goes in as whole cubes with the meat wrapped around them, so each meatball has a melted centre.
Should I add spinach to the mixture?
No — step 6 leaves it out.
Can I use fresh mozzarella?
Low-moisture is what this needs. Fresh mozzarella carries a lot of water and releases it inside the meatball.
