Avocado Egg Salad Sandwich With Sourdough
The avocado egg salad sandwich is a refreshing twist on the classic egg mayo sandwich. By swapping out most of the mayonnaise for creamy mashed avocado, this recipe delivers a lighter, more nutrient-packed alternative without compromising on flavour. Pair it with sourdough for a satisfyingly chewy texture, and add a handful of fresh salad leaves and cress for a boost of freshness. This sandwich is the perfect choice for lunch or a light dinner, combining indulgence and wholesome ingredients.
Is Avocado Egg Salad Healthy?
This sandwich is as nutritious as it is delicious. Eggs provide a rich source of protein, essential vitamins, and minerals, including vitamin D and choline. Avocado is packed with heart-healthy monounsaturated fats, fibre, and potassium, making it a fantastic alternative to traditional mayonnaise. Sourdough bread, thanks to its natural fermentation process, is easier to digest than regular bread and has a delightful tangy flavour. Adding fresh salad leaves and cress not only enhances the taste but also provides a dose of antioxidants and micronutrients.

Do you have a diet restriction?
This avocado egg salad sandwich is:
- Vegetarian
- Dairy Free
- Nut Free
- Low FODMAP
- Syn Free (HeB Allowance)
- Ultra Processed Food Free
All slimming world related info is gathered from various internet sources. Syn values may be incorrect or outdated. If you see one is wrong, please let me know so I can update the information!
Ultra processed food free recipes are recipes that use ingredients where no additives have been used. This will include ingredients that can be made at home to be UPF free such as stock cubes, sauces and seasonings.
Step 1: Boil the Eggs
Start by placing two eggs in a small saucepan and covering them with cold water. Ensure there’s enough water to completely submerge the eggs, with at least an inch of water above them.
Place the pan over medium-high heat and bring the water to a boil. Once boiling, reduce the heat slightly to maintain a gentle boil and let the eggs cook for 9 minutes. This will result in firm, hard-boiled eggs with a fully set yolk.
While the eggs are cooking, prepare a bowl of ice water or run cold water into a small bowl in the sink. Once the eggs have finished boiling, immediately transfer them to the cold water to stop the cooking process. Let them sit for about 5 minutes to cool down. This also makes peeling much easier.

Step 2: Peel and Mash the Eggs and Avocado
Once cooled, gently tap the eggs on a hard surface to crack the shells. Peel them carefully, rinsing under running water if needed to remove any stubborn bits of shell.
Place the peeled eggs in a bowl and use a fork to mash them into small, crumbly pieces. You want the texture to be slightly chunky rather than completely smooth.
Cut half an avocado and scoop the flesh into the same bowl as the eggs. Use the fork to mash the avocado into the eggs, combining the two until you achieve a creamy but textured mixture.
Season with a pinch of salt and pepper and mix well. The avocado will naturally bind everything together, creating a rich, creamy filling without needing much mayonnaise.

Step 3: Prepare the Sourdough
Take two slices of sourdough bread and lay them flat. If you prefer a crispier texture, you can toast them lightly for added crunch.
Spread 1 teaspoon of mayonnaise on one side of each slice. This adds a subtle tang and helps prevent the bread from absorbing too much moisture from the avocado egg salad.
Step 4: Assemble the Avocado Egg Salad Sandwich
On one slice of sourdough, layer a small handful of fresh salad leaves evenly over the mayo-covered surface. These greens add a fresh crunch and balance the richness of the egg and avocado.
Spoon the mashed avocado egg mixture onto the salad leaves, spreading it out evenly so every bite is well-filled.
Sprinkle 1–2 tablespoons of fresh cress over the top. The cress adds a slightly peppery bite, which enhances the flavours and complements the creamy texture of the filling.
Place the second slice of sourdough on top to complete the sandwich.

Step 5: Serve and Enjoy
Gently press the sandwich together so the filling stays in place. Using a sharp knife, slice it in half diagonally or straight across, depending on your preference.
Enjoy immediately while the bread is fresh and the filling is creamy!

Avocado Egg Salad Variations
- Add some heat: Mix a pinch of chilli flakes into the avocado egg salad for a spicy kick.
- Herb it up: Stir in chopped fresh herbs like dill, parsley, or chives for added flavour.
- Swap the bread: Use wholegrain or rye bread instead of sourdough for a different texture.
- Boost the veggies: Add sliced cucumber, tomato, or shredded carrot to the sandwich.
- Make it dairy-free: Replace the mayonnaise with a dollop of dairy-free yoghurt or an extra spoon of mashed avocado.
FAQ
1. Can I make this sandwich ahead of time?
Yes, but for best results, prepare the avocado egg salad in advance and store it in an airtight container in the fridge. Assemble the sandwich just before eating to keep the bread from becoming soggy.
2. Can I use a different type of bread?
Absolutely! While sourdough adds a delicious tang, you can use wholegrain, rye, or even a soft roll if you prefer.
3. How do I store leftover avocado egg salad?
Store the leftover mixture in an airtight container with a piece of clingfilm pressed directly onto the surface to prevent browning. Consume within 1–2 days.
4. Is this sandwich suitable for vegetarians?
Yes, this recipe is completely vegetarian-friendly.
5. Can I add other ingredients to the avocado egg salad?
Definitely! Try mixing in chopped pickles, spring onions, or even a dash of mustard for extra flavour.
6. Can I omit the mayonnaise?
Yes, you can leave out the mayonnaise entirely or replace it with more mashed avocado.
7. Can I use store-bought cress?
Of course! Store-bought or homegrown cress both work wonderfully in this recipe.
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