Balsamic Onion Burgers

Balsamic Onion Burgers 

with Crispy Cauliflower Oven Fries

By HelloFresh 

Cooking Time: 30 min.

Servings: 2

Nutrition: 684 cal, Fat: 37 g, Sat. Fat: 10 g, Protein: 32 g, Carbs: 56 g, Sugar: 11 g, Sodium: 421 mg, Fiber: 7 g


  • Cauliflower Florets- 10 oz.
  • Panko- ¼ Cup
  • Red Onion- 1
  • Garlic- 1 Clove
  • Balsamic Vinegar- 1 TBSP
  • Ground Beef- 8 oz.
  • Dried Oregano- 1 TBSP
  • Mayonnaise- 1 TBSP
  • Brioche Buns- 2


  1. Preheat oven and roast cauliflower. Wash and dry all produce. Preheat oven to 425 degrees. Toss cauliflower with panko, a large drizzle of oil, and a pinch of salt and pepper in a medium bowl. Transfer to a baking sheet and roast until golden brown, about 25 minutes. TIP: Don’t worry if a few crumbs fall off.
  2. Prep. Halve, peel, and thinly slice onion. Mince or grate 1 clove garlic (save remaining clove for another use).
  3. Cook onion. Heat a drizzle of oil in a large pan over medium heat. Add onion and cook until softened, 4-5 minutes, tossing occasionally. Stir in 1 TBSP balsamic vinegar (we sent more) and reduce heat to low. Cook until very soft, about 10 minutes. Season with salt and pepper. Remove from pan and set aside.
  4. Make burgers. Shape ground beef into two 1-inch-thick patties with your hands. Season with dried oregano, salt, and pepper. Carefully wipe out pan you cooked onions in with a paper towel, then heat a drizzle of oil in pan over medium-high heat. Add patties and cook to desired doneness, 3-5 minutes per side.
  5. Make garlic aioli. Combine 1 TBSP mayonnaise (we sent more) and garlic (to taste) in a small bowl. (TIP: Start with a pinch of garlic, then go up from there.) Season with salt and pepper. Split buns in half, place on another baking sheet, and toast in oven until golden brown, 3-5 minutes.
  6. Serve. Spread garlic aioli on buns and top each with a burger and onion. Serve with crispy cauliflower on the side.