Why This Recipe Works

Beet & walnut base: Roasted beet lends a "meaty" sweetness while toasted walnuts give rich body and prevent the mush-factor.
Quinoa + oat flour: A duo of complete protein and natural gluten-free binder that keeps the patties sturdy on a hot grate.
Flash-freeze raw: Shaped patties freeze individually so you can grab two or twelve without a wrestling match.
Grill straight from frozen: No thawing drama; they cook in roughly the same time as a beef burger.
Smoky umami boost: Smoked paprika, tamari and tomato paste create depth that satisfies even meat-lovers.
Make-ahead friendly: Perfect for summer vacations, camping trips, or busy weeknights when you need dinner in 15 minutes.

Ingredients You'll Need

Great veggie burgers live or die by the quality of their produce, so pick the brightest, heaviest beets you can find. If possible, buy them loose rather than bagged; the greens should look perky, a sure sign of freshness. Toasting your walnuts is non-negotiable—five minutes in a dry skillet wakes up their nutty oils and keeps the patties from tasting “raw.” For grains, I favor tricolor quinoa for the flecks of color, but any variety works. Chickpea flour is my binder of choice because it firms up as it cooks, yet cornmeal is an excellent stand-in if that’s what you keep around. Smoked paprika varies wildly in potency; if yours has been languishing in the cupboard for a year, spring for a new jar. Finally, choose a variety of dried herbs you love; I blend oregano and thyme for Mediterranean vibes, but swap in cumin and coriander if you want something more southwestern.

How to Make Freezer-Friendly Veggie Patties for Grilling Later

Roast the Beets

Heat oven to 400 °F (204 °C). Scrub 2 medium beets, wrap in foil with a drizzle of oil, and roast 35-40 min until a knife slides through easily. Cool, then peel—the skins slip right off. Grate on the large holes of a box grater for about 1 packed cup.

Toast the Walnuts

Place ¾ cup walnuts in a dry skillet over medium heat. Stir frequently until fragrant and lightly browned, 4-5 min. Tip onto a plate to cool, then pulse in a food processor until coarse crumbs—think panko, not powder.

Cook the Quinoa

Rinse ½ cup quinoa under cold water. Combine with 1 cup water and a pinch of salt in a small pot; bring to a boil, cover, lower heat and simmer 15 min. Let stand 5 min off heat, then fluff. You need 1 cup cooked; cool completely so it doesn’t cook the other ingredients.

Sauté Aromatics

In 1 Tbsp olive oil, cook ½ cup minced onion and 2 minced garlic cloves until translucent, 3-4 min. Stir in 1 Tbsp tomato paste and 1 tsp smoked paprika; cook 1 min to caramelize the paste. Scrape into a large mixing bowl and let cool slightly.

Mix the Dough

To the bowl, add grated beet, quinoa, walnuts, ¼ cup oat flour, 2 Tbsp chickpea flour, 1 Tbsp tamari, 1 tsp salt, ½ tsp pepper, and 1 tsp dried oregano. Stir until a tacky dough forms; if it feels loose, sprinkle in more oat flour 1 Tbsp at a time.

Shape Patties

Moisten your hands. Scoop ⅓-cup portions, roll into balls, then flatten into ¾-inch-thick patties—about 3½ inches wide. Even thickness ensures they cook uniformly on the grill.

Flash-Freeze

Line a baking sheet with parchment. Arrange patties in a single layer; slide into the freezer 1 hour, or until firm. This prevents sticking when stacked.

Package for Storage

Layer frozen patties with parchment squares in an airtight container or zip-top bag. Press out air, label, and return to freezer up to 3 months.

Grill from Frozen

Preheat grill to medium (about 425 °F). Brush patties with oil; cook 5 min per side with the lid closed, brushing with barbecue sauce in the final 2 min for a lacquered finish.

Expert Tips

Keep them Cold

A warm mixture sticks to your hands and falls apart on the grill. If the dough softens, pop the bowl in the fridge 10 min.

Oil the Grates, Not Just the Patties

A well-oiled, clean grate prevents sticking better than brushing oil on fragile patties alone.

Use a Thin Spatula

A wide, flexible metal spatula slides completely under the patty so you can flip confidently in one swift motion.

Don’t Overwork the Mix

Stir just until everything clumps. Over-mixing pulverizes the walnuts and yields a gummy texture.

Toast Extra Quinoa

Make a double batch of quinoa; the cooked grains freeze beautifully for salads later.

Label Boldly

Include the date and “Grill 5 min per side” so future you, babysitters, or guests know exactly what to do.

Variations to Try

Storage Tips

Refrigerator: Store shaped, uncooked patties up to 3 days on a parchment-lined plate wrapped tightly in plastic. Cook within this window for optimal color and flavor.

Freezer: Flash-freeze first, then transfer to a labeled bag with as much air removed as possible. Patties keep 3 months before freezer taste creeps in.

Cooked Leftovers: Grilled patties cool completely, then refrigerate up to 5 days. Reheat in a lightly oiled skillet over medium 2 min per side to crisp the exterior.

Batch Doubling: This recipe scales perfectly; use a wider pan when sautéing aromatics so they brown, not steam.

Frequently Asked Questions

Absolutely. Place frozen patties on a parchment-lined sheet, brush with oil, and bake at 425 °F for 12 min per side. Broil the final 2 min for extra browning.

Yes, but use a well-oiled cast-iron griddle or grill basket to avoid losing bits to the flames. Flip once for best results.

Roasted carrot or sweet potato works, but the burgers will taste sweeter and brown less. Add 1 tsp cocoa powder to restore color depth.

Yes, as long as you use certified gluten-free oat flour and tamari. Chickpea flour is naturally gluten-free.

Look for deep grill marks and a firm feel when pressed. Internal temp should reach 165 °F for food safety, though the burgers remain moist due to the beet.

Definitely. Heat 2 tsp oil in a heavy skillet over medium, add patties, cover with lid, and cook 6 min per side. The lid traps steam to heat centers evenly.

Freezer-Friendly Veggie Patties for Grilling Later