These burgers mix grated zucchini directly into the beef patty, which keeps the meat moist without adding extra fat. The garlic herb aioli comes together in one bowl and doubles as the only sauce you need. If you want a burger that’s genuinely juicy and a little different from your usual backyard cookout, this is a solid weeknight or weekend option.
About the ingredients
- Zucchini: Grate it on the large holes of a box grater, then squeeze out as much water as you can using a clean kitchen towel or paper towels. Skipping this step is the main reason patties fall apart or steam instead of sear.
- Breadcrumbs: Plain or Italian both work. Gluten-free breadcrumbs substitute 1:1 with no noticeable difference in texture.
- Garlic for the aioli: Freshly minced garlic is sharper and more pungent than jarred. If you want a milder spread, use roasted garlic instead.
- Mayonnaise base: Full-fat mayo gives the aioli the best body. Vegan mayo works fine if you need a dairy-free build.
- Brioche buns: These are called for in the recipe. Standard burger buns are a fine substitute — just toast them so they hold up to the aioli.
What makes this version work
Two things matter here. First, getting the zucchini genuinely dry before it goes into the mix — not just patted, but wrung out hard. Wet zucchini turns the patty loose and makes it hard to get a proper sear. Second, don’t overwork the meat mixture. Stir everything together until just combined, then stop. Overworked ground beef tightens up as it cooks and you end up with a dense, rubbery patty instead of a tender one. Mix it like you’re folding, not kneading, and the texture takes care of itself.
Troubleshooting
- Patties are falling apart in the pan: The zucchini wasn’t dry enough, or the mixture was too warm when you shaped it. Refrigerate the formed patties for 20 minutes before cooking — cold fat holds the patty together better.
- The outside is browning but the inside is still raw: Your pan is too hot. Medium to medium-high heat gives you a proper crust without burning the outside before the center hits 160°F (71°C). Use an instant-read thermometer — don’t guess.
- Aioli is too thin: Add another tablespoon of mayo and stir. The lemon juice can loosen it more than expected, especially if your garlic released a lot of moisture.
- Patties are sticking to the pan: Make sure the pan and oil are hot before the patties go in. A cold pan causes sticking. Cast iron works especially well here — let it preheat for two full minutes.
- Burger tastes bland after cooking: Season the outside of the formed patties with salt and pepper right before they go in the pan, not just the mix. Surface seasoning makes a real difference in the final flavor.
Storage and reheating
Cooked patties keep in an airtight container in the fridge for up to 3 days. Reheat them in a dry skillet over medium-low heat for about 3 minutes per side — the microwave works but makes the texture rubbery. Raw shaped patties can be frozen for up to 2 months; stack them with parchment between each one and thaw overnight in the fridge before cooking. The aioli keeps refrigerated for up to 5 days in a sealed jar. Don’t freeze the aioli — it breaks when it thaws.
Zucchini Beef Burgers with Garlic Herb Aioli
Ingredients
For the Zucchini Beef Patties:
- 1 lb ground beef (85% lean) choose grass-fed for best flavor
- 1 cup zucchini, grated squeezed dry with a towel to remove excess water
- ¼ cup yellow onion, finely chopped adds sweetness and moisture
- 2 cloves garlic, minced freshly minced for best flavor
- 1 large egg acts as a binder
- ⅓ cup breadcrumbs use panko for a light texture or gluten-free crumbs as a substitute
- ½ tsp kosher salt adjust to taste
- ¼ tsp black pepper freshly ground
For the Garlic Herb Aioli (optional but recommended):
- ½ cup mayonnaise use high-quality or homemade mayo
- 1 clove garlic, minced use a microplane for a finer consistency
- 1 tbsp fresh parsley, finely chopped or substitute with basil for a different twist
- 1 tsp lemon juice freshly squeezed for brightness
To Serve:
- 4 pieces brioche buns lightly toasted
- 4 leaves lettuce
- 4 slices tomato beefsteak or heirloom for best flavor
Instructions
- Prepare the Burger Mixture: In a large bowl, combine ground beef, grated zucchini (make sure it's well squeezed to avoid excess moisture), onion, garlic, egg, breadcrumbs, salt, and pepper. Mix gently with your hands until just combined — avoid overmixing to keep the patties tender.
- Shape the Patties: Divide mixture into 4 equal portions and form into patties about 1/2 inch thick. Refrigerate for 15 minutes to help them set before cooking.
- Cook the Burgers: Heat a grill or skillet to medium-high heat (about 375°F / 190°C). Lightly oil the grill or pan. Cook the patties for 5–7 minutes on each side, or until browned and the internal temperature reaches 160°F (71°C).
- Make the Garlic Herb Aioli: In a small bowl, combine mayonnaise, minced garlic, parsley, and lemon juice. Stir to combine and refrigerate until ready to serve.
- Assemble the Burgers: Toast brioche buns and spread aioli on the top and bottom buns. Layer with lettuce, a zucchini beef patty, and a slice of tomato. Serve immediately.
Notes
- For a dairy-free version, ensure breadcrumbs and buns are dairy-free, and use vegan mayo.
- You may add crumbled feta or cheddar into the beef mix for richness.
- If using pre-shredded zucchini, be sure it's not too moist—always pat dry to avoid soggy patties.
Nutrition
Frequently asked questions
Do I really need to squeeze the water out of the zucchini?
Yes — this is not optional. Zucchini is mostly water, and if you skip this step the patties will be too wet to hold together and won’t brown properly. Wring it out in a kitchen towel until no more liquid drips out.
Can I grill these instead of pan-cooking them?
You can, but handle them carefully — the zucchini makes the patties a little more delicate than a plain beef patty. Chill the shaped patties for at least 20 minutes before they go on the grill, and use a well-oiled grate to prevent sticking.
How do I know when the patties are done?
Use an instant-read thermometer and cook to 160°F (71°C) internal temperature — this is a ground beef and vegetable blend, so don’t rely on color alone. The zucchini can make the interior look slightly different from a standard beef patty even when fully cooked.
Can I make the patties ahead of time?
Yes, and it actually helps. Shape the patties, cover them, and refrigerate for up to 24 hours before cooking. The rest firms them up and makes them easier to handle.
My aioli tastes too sharp from the raw garlic. How do I fix it?
Make the aioli at least 15 minutes before serving — the garlic mellows as it sits in the lemon and mayo. If it’s still too sharp, stir in a small pinch of sugar or a little extra lemon juice to balance it out.
Can I use a leaner ground beef like 90/10?
Skip the lean beef here — the zucchini already adds moisture, but 90/10 beef still tends to produce a drier, tighter patty. An 80/20 blend gives you enough fat to keep things juicy and helps the patty hold together better during cooking.