This Healthy Breakfast Sandwich with Egg and Avocado is my go-to busy-morning breakfast. It comes together in under two minutes. Creamy avocado, a soft egg, and melty cheese sit on a toasted English muffin.

The trick is the egg. I borrowed a fast method from a cafe where I worked as a student. You cook the egg in a ramekin in the microwave, so there is no pan to wash.
It is a healthy, high-protein start that keeps me full. If you love easy eggs, try my eggs over medium or these breakfast recipes with sausage and eggs next.
What Goes in This Avocado Breakfast Sandwich
Here is everything in this quick egg and avocado sandwich.
- Egg: cooked fast in a ramekin in the microwave.
- Milk: a small splash for a softer egg.
- Swiss cheese: melts into the warm egg.
- Avocado: sliced or smashed, for creamy richness.
- English muffin: toasted and buttered.
- Salt and pepper
Full recipe quantities listed in the recipe card at the bottom of the article.
Variations and Substitutions
This sandwich is easy to make your own.
- Swap the cheese: cheddar, gouda, or pepper jack all melt well.
- Add heat: a few dashes of hot sauce or chili flakes.
- Make it vegan: use an egg substitute and skip the cheese.
- Change the bread: try a homemade English muffin, a bagel, or toast.
- Add protein: a slice of bacon, ham, or smoked salmon.
Grab These Tools
You need very little to make this.
- Microwave-safe ramekin: cooks the egg in one minute.
- Small plate: to cover the ramekin while it cooks.
- Toaster: for the English muffin.
How to Make an Avocado Egg Sandwich
Here is how this avocado egg sandwich comes together in about seven minutes.
Cook the Egg
Whisk the egg with a splash of milk in a buttered, microwave-safe ramekin. Cover with a plate and microwave on high for 1 minute.
Melt the Cheese
Lay the Swiss cheese on the hot egg. Cover again and let it sit about a minute, until the cheese melts.
Build the Sandwich
Toast and butter the English muffin. Arrange the avocado on one half, top with the egg and cheese, and season with salt and pepper.

Tips for the Best Egg and Avocado Sandwich
A few small things make every sandwich better.
- Use a ripe avocado: it should give slightly when pressed.
- Butter the ramekin: the egg slides right out.
- Do not overcook the egg: one minute keeps it soft.
- Toast the muffin well: a sturdy base holds the fillings.
- Season at the end: salt and pepper wake up the avocado.
Make Ahead and Meal Prep
This is a high-protein breakfast that travels well and preps fast.
Make Ahead
- Cook eggs early: store cooked eggs in the fridge up to 3 days.
- Prep avocado fresh: slice it just before eating so it stays green.
Storing and Reheating
- Reheat the egg: microwave 20 to 30 seconds until warm.
- Keep parts separate: assemble right before serving.

What to Serve With a Healthy Breakfast Sandwich
I round out this healthy breakfast sandwich with a few easy sides.
- Fresh fruit or a green avocado smoothie.
- A fried egg breakfast salad for a bigger plate.
- Crispy potatoes or a breakfast casserole for a crowd.
- Hot coffee or fresh juice.
Secrets to the Best Breakfast Sandwich
These small touches make this one better every time.
- Mash the avocado: it spreads evenly and will not slide off.
- Warm everything: a hot egg melts the cheese and softens the avocado.
- Use good bread: a real English muffin holds butter in every nook.
- Add acid: a squeeze of lemon keeps the avocado bright.
- Eat it fresh: this sandwich is best the moment it is built.
Avocado Egg Sandwich FAQs
Just skimming through? Here are some quick answers to the commonly-asked questions.
Yes, an avocado egg sandwich is a healthy breakfast. The egg adds protein and the avocado brings fiber and good fats. On a whole-grain English muffin, it is balanced, filling, and keeps you satisfied through the morning.
To make an avocado egg sandwich, cook a whisked egg in a microwave-safe ramekin for one minute. Melt cheese on top, then layer the egg and sliced avocado on a toasted English muffin. Season with salt and pepper.
Whisk one egg with a splash of milk in a buttered ramekin. Cover with a plate and microwave on high for about one minute. The cover traps steam, so the egg cooks evenly with no pan to clean.
Swiss cheese melts smoothly and is my favorite here. Cheddar, gouda, provolone, or pepper jack also work. Lay the cheese on the hot egg and cover it for a minute so it melts before you build the sandwich.
Yes, you can prep parts ahead. Cook the eggs and store them in the fridge up to three days, then reheat for about 30 seconds. Slice the avocado fresh so it stays green, and assemble right before eating.
Skip the egg and cheese and use a plant-based option. A tofu scramble or a store-bought egg substitute works well. Add extra avocado for richness, and toast the muffin so it holds everything together.
A toasted English muffin is my top pick because it is sturdy and full of nooks for butter. A bagel, sourdough, or whole-grain toast also work. Toast it well so the bread holds the egg and avocado.
Yes, it is a high-protein breakfast. One egg has about six grams of protein, and the cheese adds more. The avocado brings healthy fats and fiber, so the sandwich keeps you full longer than plain toast.
Other Favorite Egg Recipes
- Eggs Over Medium
- Breakfast Recipes with Sausage and Eggs
- Fried Egg Breakfast Salad
- Muffin Tin Mini Quiches
- Portabella Mushroom Eggs Benedict
- Best Substitute for Eggs in Recipes

Healthy Breakfast Sandwich with Egg & Avocado
Ingredients
- 1 egg
- 1 ½ tsp milk a splash
- 1 slice swiss cheese
- sliced avocado
- 1 english muffin toasted and buttered
- salt and pepper to taste
Instructions
- Whisk the egg with the milk in a buttered, microwave-safe ramekin. Cover with a microwave-safe plate (or plastic wrap) and microwave on high power for 1 minute.
- Place the cheese on top of the egg, then cover with the plate again to let the cheese melt, about a minute.
- Arrange the avocado slices on one half of the English muffin, top with the egg and cheese, and season with salt and pepper.
Notes
Nutrition
Nutrition information is automatically calculated, so should only be used as an approximation.












