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British

Cheese and onion toastie

Vegetarian

Buttered bread pressed around sharp cheddar and finely sliced onion and fried until golden and oozing — a British café and home lunch staple.

Cheese and onion toastie is a British sandwich from United Kingdom, ready in about 13 minutes and made with white bread, cheddar and spring onion. It serves 2 and is rated beginner to cook.

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A serving of Grilled cheese
Photo: Willis Lam / Wikimedia Commons · CC-BY-SA-2.0
Prep
5 min
Cook
8 min
Total
13 min
Serves
2
Level
Beginner
Calories
427

Ingredients

2 servings

Equipment

Method

  1. Step 1

    Butter (opens in a new tab) one side of each slice of bread. Mix the cheese, spring onion (opens in a new tab) and pepper (opens in a new tab).

    • 3 min
    An onion being chopped on a board
    How it looks · Photo: Christina & Peter on Pexels

  2. Step 2

    Place two slices butter (opens in a new tab)-side down, spread thinly with mustard if using, pile on the cheese mixture and top with the remaining bread, butter-side up.

    • 1 min

  3. Step 3

    Cook in a frying pan over medium-low heat, pressing down with a spatula, until golden underneath. Flip and cook until the second side is golden and the cheese has melted.

About this dish

Origin
United Kingdom · Commonly attributedAlso popular in IrelandMore food from United Kingdom
Dish
Lunch · Snack · Sandwiches
Cooking method
Pan-fried, Toasted
Taste
savoury, rich, salty
Diet
Vegetarian (lacto-ovo) · No nut ingredients
All labelsVegetarian (lacto-ovo) · Eggetarian · Lacto-vegetarian · Pescatarian · Flexitarian-friendly · Egg-free · No nut ingredients · No added sugar · Alcohol-free · Pork-free · Beef-free · Calorie-conscious
Worked out from the ingredients. How labels work
Good for
Everyday · Child-friendly · Budget-friendly · Minimal cleanup
Cook more with
White bread · Cheddar · Spring onion · Butter
Techniques
Toasting · Pan-frying · Spice roasting (dry-roasting)

Allergens

  • Contains: Milkfrom white bread, butter, cheddar
  • May contain: Eggsfrom white bread
  • Contains: Wheatfrom white bread
  • Contains: Glutenfrom white bread
  • May contain: Soyfrom white bread
  • May contain: Sesamefrom white bread
  • Contains, can be adapted: Mustardfrom prepared mustard
  • May contain: Sulphitesfrom prepared mustard

Based on typical versions of these ingredients and not verified allergen-free. Brands differ and cross-contact happens, so always check labels. For severe allergies, follow your clinician’s advice.

Nutrition

427 kcal per serving

Calculated

1 serving ≈ 131 g · recipe makes 2

Where the energy comes from

  • Protein 16%
  • Carbohydrate 28%
  • Fat 56%
Nutrition per serving and per 100 g
NutrientPer servingPer 100 g*
Energy427 kcal326 kcal
Protein16.8 g12.8 g
Carbohydrate30.6 g23.3 g
Net carbohydrate28.6 g21.8 g
Sugars3.8 g2.9 g
Added sugars0 g0 g
Fibre1.9 g1.5 g
Fat26.7 g20.3 g
Saturated fat15 g11.4 g
Trans fat——
Cholesterol71 mg54 mg
Sodium668 mg509 mg
Salt equivalent1.7 g1.3 g
Vitamins & minerals per serving
Potassium
154 mg
Calcium
450 mg
Iron
2.3 mg
Magnesium
30 mg
Vitamin A (RAE)
244 µg
Vitamin C
3 mg
Vitamin D
0.3 µg
Vitamin B12
0.6 µg
Folate (DFE)
119 µg

How these numbers were made

  • Calculated from USDA FoodData Central (SR Legacy) per-100 g values and the listed quantities.
  • *Per 100 g of combined raw ingredients; the cooked dish may weigh more or less.
  • Optional ingredients are not included: prepared mustard.
  • “—” means the value isn’t known for enough of the ingredients; it is never zero by default.
  • Values are estimates for guidance, not for medical dosing. U.S. Department of Agriculture, Agricultural Research Service. FoodData Central, 2019. fdc.nal.usda.gov.

Good to know

Tips

  • Low heat lets the cheese melt before the bread burns.

Common mistakes

  • Cooking over high heat burns the bread before the cheese melts.
  • Thick slices of cheese melt unevenly — grate it.

Serve with

  • Serve with tomato soup or a pickle on the side.

Storage

  • Best eaten immediately.

Original editorial recipe · FriendsPantry editorial · Not yet independently reviewed · Added · Updated

Recipe DNA

How this dish is built

Grouped by each ingredient’s role in the dish. Each band’s width is its share of the dish by weight. Choose a component to see what it does.

What the dish is built around

Main ingredient

Used in step 1

Reviews & corrections

Reviews come from signed-in cooks and appear after a moderator checks them. We never show made-up ratings.

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