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chicken avocado sandwich on wooden board with lime and mayo blurred in fornt

Cajun Chicken Avocado Sandwich

This Cajun Chicken Avocado Sandwich is loaded with so much flavour. Plus, it couldn't be easier to make!
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Course: Dinner
Cuisine: Cajun
Prep Time: 15 minutes
Cook Time: 15 minutes
Total Time: 30 minutes
Servings (click & slide): 4 sandwiches
Calories per serving: 748kcal
Author: Chris
Cost per serving: £3 / $4


  • Rolling Pin/Mallet & Cling Film (for pounding chicken)
  • Griddle Pan & Tongs (or cast iron skillet/regular frying pan)
  • Large Shallow Bowl or Zip Lock Bag (for marinating)
  • Sharp Knife & Chopping Board


Cajun Chicken

  • 4x 150g/5oz Chicken Breasts
  • 4 square slices of Monterey Jack (see notes)
  • 2 tbsp Cajun Seasoning
  • 2 tbsp Olive Oil
  • 1 tbsp Lime Juice
  • 1/2 tsp Salt
  • 1/4 tsp Black Pepper


  • 4 Ciabatta Rolls, toasted (see notes)
  • 1 large Red Onion, sliced into thin rounds
  • 2 small Avocados, halved
  • 4 small Tomatoes, sliced into thin round
  • 4 tbsp Mayo
  • squeeze of Lime Juice (for avocado)
  • Salt & Pepper (for avocado)


  • Pound Chicken: Lay a chicken breast on your chopping board and cover with cling film (pinch around edges so no moisture escapes). Pound until even thickness, but not so thin it starts breaking apart. Around 1/2" is fine. Repeat with remaining chicken breasts.
  • Marinade: In a shallow bowl or the base of a zip lock bag, use a fork to whisk together cajun seasoning, olive oil, lime juice, salt and pepper. Add in chicken breasts and combine until they're all completely covered with the marinade. Marinate for as long as you have time for (up to overnight). If you're pushed for time just rest at room temp as you prep the other ingredients.
  • Grill Chicken: Bring chicken to room temp if marinated in fridge, then add to a griddle pan over medium high heat. Fry until it begins to char (3-4mins), then flip, add cheese and continue frying until charred on the second side and white through the centre.
  • Sandwich: Use a fork to lightly smash half an avocado per sandwich onto the base slice of your ciabatta. Season with a pinch of salt and pepper, then give a gentle squeeze of lime juice. Top with chicken, then onion, then tomato. Finish by spreading mayo over the top slice of the ciabatta. Plonk it on top and enjoy!

Quick Demo


a) Ciabatta Rolls - To toast them just halve then place face down in a DRY scorching hot pan until char lines appear. You can also broil under the grill!
b) Marinating - The longer the better, but even just 15-20mins will do the trick. In all cases though just make sure you bring the chicken close to room temp before frying. If you fry cold chicken it'll seize up and go chewy.
c) Monterey Jack - I like the flavour profile of this with the spicy chicken, but in reality you can use any cheese you fancy! Swiss and Cheddar both work great.
d) Calories - per sandwich.
Nutrition Facts
Cajun Chicken Avocado Sandwich
Amount Per Serving
Calories 748 Calories from Fat 413
% Daily Value*
Fat 45.88g71%
Saturated Fat 11.261g70%
Trans Fat 0.04g
Polyunsaturated Fat 10.281g
Monounsaturated Fat 20.971g
Cholesterol 140mg47%
Sodium 1141mg50%
Potassium 1207mg34%
Carbohydrates 36.9g12%
Fiber 9.1g38%
Sugar 6.07g7%
Protein 47.66g95%
Vitamin A 698IU14%
Vitamin C 16.6mg20%
Calcium 314mg31%
Iron 3.27mg18%
* Percent Daily Values are based on a 2000 calorie diet.
*Nutrition is based on the absence of salt unless stated as a measurement in the ingredients. Cost is worked out based on ingredients bought from UK supermarkets, then divided by the number of servings. In both instances these values are just for guidance. Please check out my FAQ Page for more info.
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