Moist Zucchini Meatloaf That Stays Tender Every Time

This zucchini meatloaf is the kind of dinner you make once and then text a friend about. It’s moist without falling apart, and the shredded zucchini keeps it from ever turning dry in the middle.

The glaze on top sets just enough to get a little sticky and caramelized, which is how I want my meatloaf to taste. It works any night of the week and reheats really well, so leftovers are never a problem.

What Makes This Zucchini Meatloaf So Good

It stays tender because the zucchini releases just enough moisture as it bakes. You get soft texture in every slice instead of a dense block of ground meat.

The flavor is simple: onion, a little Worcestershire, a bit of ketchup in the mix, and that classic glaze on top. No fancy ingredients, just a meatloaf that actually tastes like a good meal.

Ingredients

• 1 lb ground beef, 85% lean: the fat keeps it juicy without making the loaf greasy
• 1 cup finely grated zucchini, squeezed dry: measure after squeezing, you will have about a packed cup
• ½ cup finely chopped yellow onion: white or sweet onion works too
• 1 large egg, lightly beaten: helps everything hold together
• ½ cup plain dry breadcrumbs: use panko for a slightly lighter texture
• ¼ cup ketchup: goes right into the meat mixture
• 1 tbsp Worcestershire sauce: adds savory depth
• 1 tsp kosher salt
• ½ tsp black pepper
• For the glaze: ⅓ cup ketchup, 1 tbsp brown sugar, 1 tsp apple cider vinegar

Variations / Substitutions

• Swap the ground beef: equal weight ground turkey or chicken works, but use 93% lean so it does not dry out
• Use gluten-free breadcrumbs: gluten-free panko hold the loaf together without changing the texture much
• Change the onion: scallions or a small shallot bring a milder flavor
• Add a little heat: a pinch of cayenne in the mix or a few dashes of hot sauce in the glaze
• Herb it up: 2 tsp of fresh thyme or oregano folded into the meat mixture makes it taste a little more like a summer dinner

If you have extra zucchini on the counter, Zucchini Fritters are another good way to use it up.

How to Make Zucchini Meatloaf

Step 1: Mix the Meatloaf Mixture

Preheat the oven to 375°F (190°C) while you get everything together. In a large bowl, combine the 1 lb ground beef, the squeezed zucchini, chopped onion, beaten egg, ½ cup breadcrumbs, ¼ cup ketchup, 1 tbsp Worcestershire sauce, salt, and pepper.

Use your hands to mix everything just until no streaks of egg or breadcrumbs show. Overworking the meat makes the loaf tight and dense, so stop as soon as it looks evenly combined. The mixture will feel soft and a little wet from the zucchini, and that is exactly how it should be.

Step 2: Shape the Loaf

Turn the mixture out onto a parchment-lined baking sheet and form it into a freeform loaf roughly 8 by 4 inches. Keep the top slightly rounded and the edges straight so it cooks evenly.

Shaping it freehand instead of packing it into a pan lets more of the surface caramelize and keeps the bottom from steaming in its own juices. Pat the surface smooth with damp fingers so the glaze sticks later.

Step 3: Glaze the Meatloaf

In a small bowl, stir together the ⅓ cup ketchup, brown sugar, and apple cider vinegar. Spoon about two-thirds of the glaze over the top of the loaf and use the back of the spoon to spread it all the way to the edges.

The glaze goes on before baking so it has time to set into a shiny, sticky layer. Save the remaining glaze to brush on after the meatloaf comes out of the oven.

Step 4: Bake Until Cooked Through

Slide the baking sheet onto the middle rack and bake for 50 to 55 minutes, until the internal temperature in the center reaches 160°F (71°C). The loaf will look deep brown on top and the edges will be slightly darker than the rest.

If the glaze starts getting too dark before the meatloaf hits temperature, tent a piece of foil loosely over the top. That keeps the outside from charring while the center finishes cooking.

Step 5: Glaze Again and Slice

Pull the meatloaf out and brush the remaining glaze over the top while it is still hot. Let it rest on the baking sheet for 10 minutes so the juices settle. Then transfer it to a cutting board and slice into thick pieces with a serrated knife.

The rest time is short, just enough to keep the slices from crumbling when you cut. Serve the pieces warm while the glaze is still glossy and the edges have that slight chew.

My Best Tips for Zucchini Meatloaf

• Squeeze the zucchini hard: this is the step that decides whether your meatloaf holds together or turns into a wet mess. Gather the grated zucchini in a clean kitchen towel and wring it out over the sink until no more water drips out.
• Use cold hands: mixing the meat with cool hands keeps the fat from starting to melt. That fat stays suspended in the mix and releases gradually during baking, which helps the meatloaf stay moist.
• Skip the loaf pan if you can: a freeform shape gets better browning all around and does not end up swimming in fat. If you only have a loaf pan, set the pan on a baking sheet to catch any drips.
• Check the temperature, not the clock: the meatloaf is done at 160°F inside, no matter what the timer says. A zucchini-heavy mix can bake a little faster or slower depending on how dry the squash was.

Bake times vary by pan shape:

Storing Leftovers

• Refrigerate: wrap slices tightly or tuck them into a sealed container and they will stay good for up to 4 days.
• Reheating: warm individual slices in the microwave for a minute or two, or cover the whole loaf with foil and reheat in a 300°F oven for about 20 minutes.
• Serve cold: leftover meatloaf makes a surprisingly good sandwich straight from the fridge, on toasted bread with a little extra ketchup.

What Goes Well With Zucchini Meatloaf

Buttery mashed potatoes and something green are the classic pair. The potatoes catch any extra glaze that drips off the slices, and a quick green side keeps the plate from feeling too heavy. Steamed green beans with a pinch of salt or a simple arugula salad with lemon dressing both work, because their brightness cuts through the rich meat.

Frequently Asked Questions

Do I need to peel the zucchini for meatloaf?

No, the skin is thin enough that it practically disappears when you grate it finely and bake it for almost an hour. Peeling is extra work you can skip.

Can I freeze this meatloaf?

Yes. Let it cool completely, wrap the whole loaf or thick slices in plastic wrap and foil, and freeze for up to 3 months. Thaw overnight in the fridge and reheat in the oven.

Why did my meatloaf fall apart?

Usually that means the zucchini was too wet or the loaf did not rest after baking. Squeeze the zucchini until it feels almost dry, and always let the cooked meatloaf sit for 10 minutes before slicing.

Can I use almond flour instead of breadcrumbs?

Not as a straight swap, because almond flour does not absorb moisture the same way. A better substitute is a commercial gluten-free panko, both of which hold the loaf together without tasting like nuts.

Zucchini Meatloaf Recipe

Print Recipe Pin Recipe

Prep Time 15 minutes mins

Cook Time 55 minutes mins

Total Time 1 hour hr 10 minutes mins

Servings: 6 servings

Calories: 280

Ingredients Method Notes

Ingredients

  

• 1 lb ground beef, 85% lean
• 1 cup finely grated zucchini, squeezed dry (packed after squeezing)
• ½ cup finely chopped yellow onion
• 1 large egg, lightly beaten
• ½ cup plain dry breadcrumbs
• ¼ cup ketchup
• 1 tbsp Worcestershire sauce
• 1 tsp kosher salt
• ½ tsp black pepper
• ⅓ cup ketchup (for glaze)
• 1 tbsp brown sugar
• 1 tsp apple cider vinegar

Method

 

1. Preheat oven to 375°F (190°C). In a large bowl, mix the beef, squeezed zucchini, onion, egg, breadcrumbs, ¼ cup ketchup, Worcestershire sauce, salt, and pepper just until combined.
2. Shape the mixture into a freeform loaf about 8×4 inches on a parchment-lined baking sheet.
3. Stir together the ⅓ cup ketchup, brown sugar, and vinegar. Spread about two-thirds of the glaze over the top of the loaf.
4. Bake for 50 to 55 minutes, until the internal temperature hits 160°F (71°C). Brush remaining glaze over the hot loaf.
5. Let rest 10 minutes, then slice and serve warm.

Notes

Measure the zucchini after squeezing to make sure you have a full packed cup. If your kitchen runs warm, chill the meat mixture for 10 minutes before shaping to keep the fat from softening too early.