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Veggie Burger and Sticky Red Onion Relish

Veggie Burger and Sticky Red Onion Relish

with Chips and Pickled Onion, Baby Gem & Tomato Salad

Recipe Development Team
Recipe Development TeamUpdated on April 15, 2025
4.5
(160)

An easy homemade onion relish, baby gem salad and pickled onion give savoury-sweet flavour to this tasty vegetarian burger. Served up with chips and tomato salad, this is a taste of summer at home.

Tags:
Veggie
Allergens:
Sulphites
Soya
Cereals containing gluten

The quantities provided above are averages only.

Produced in a facility that processes eggs, milk, fish, peanuts, sesame, shellfish, soy, tree nuts, and wheat.

Total40 minutes
Active 25 minutes
DifficultyEasy

Ingredients

serving amount

450 grams

Potatoes

1 unit(s)

Red Onion

12 milliliter(s)

Red Wine Vinegar

(Contains: Sulphites)

1 unit(s)

Baby Gem Lettuce

125 grams

Baby Plum Tomatoes

12 milliliter(s)

Balsamic Vinegar

(Contains: Sulphites)

37.5 grams

Red Pepper Chilli Jelly

2 unit(s)

Unconventional Plant-Based Burgers

(Contains: Soya May contain traces of: Cereals containing gluten)

2 unit(s)

Burger Buns

(Contains: Cereals containing gluten May contain traces of: Milk, Egg, Soya)

Not included in your delivery

1 tsp

Sugar

2 tbsp

Mayonnaise

Nutritional information

Energy (kJ)3112 kJ
Energy (kcal)744 kcal
Fat25.3 g
of which saturates6.6 g
Carbohydrate101.5 g
of which sugars24.9 g
Dietary Fibre12.4 g
Protein25.6 g
Salt1.9 g
Always refer to the product label for the most accurate ingredient and allergen information.

Utensils

Baking Tray
Medium Bowl
Small Bowl
Large Frying Pan

Instructions

Chip, Chip, Hooray
1

Preheat your oven to 220°C/200°C fan/gas mark 7.

Chop the potatoes lengthways into 1cm slices, then chop into 1cm wide chips (no need to peel).

Pop the chips onto a large baking tray. Drizzle with oil, season with salt and pepper, then toss to coat. Spread out in a single layer. TIP: Use two baking trays if necessary.

When the oven is hot, bake on the top shelf until golden, 25-30 mins. Turn halfway through.

Pickle the Onion
2

Meanwhile, halve, peel and thinly slice the red onion.

In a medium bowl, combine the red wine vinegar, sugar (see pantry for amount) and a pinch of salt and pepper.

Add half the onion, toss to coat, then set aside to pickle.

Finish the Prep
3

Trim the baby gem and halve lengthways. Tear off two leaves per person and set aside.

Thinly slice the remaining baby gem.

Halve the baby plum tomatoes. 

Make your Relish
4

Pop a large frying pan on medium heat with a drizzle of oil.

Once hot, add the remaining onion to the pan and cook until softened, 4-5 mins. Season with salt and pepper.

Add the balsamic vinegar and cook until evaporated, 1 min.

Stir in the red pepper chilli jelly and cook until sticky, 1-2 mins. Transfer to a small bowl and set aside.

Fry the Burgers
5

When the chips have 10 mins remaining, wipe out the (now empty) pan and return to medium-high heat with a drizzle of oil.

Once hot, fry the burgers until browned, 3-4 mins on each side.

Meanwhile, halve the burger buns and pop them into the oven to warm through, 2-3 mins.

Stack up and Serve
6

When everything's ready, spread the mayo (see pantry for amount) over the bun bases. Top the bases with the veggie burgers, onion relish, reserved lettuce leaves and a few slices of pickled onion, then sandwich shut with the bun lids.

Add the sliced baby gem and tomatoes to the remaining pickled onion with a drizzle of oil and toss to coat.

Serve the salad and chips alongside your veggie burgers.

Enjoy!

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