13 Tasty Omelet Fillings For Your Next Breakfast

One of my favorite ways to start the day is with an omelet on my plate. They’re packed full of healthy proteins, and they’re a deceptively easy dish to make. All you need is a couple of eggs, a nonstick pan, and a healthy pat of butter or cooking oil. 

Plate With A Typical Tortilla De Patatas

No omelet is complete, however, without a tasty filling to spice things up a bit. One of the best things about omelets is their versatility.

There are near endless ways that you can personalize your breakfast by mixing and matching add-ons, from savory meats and cheeses to nutritious fruits and veggies. 

Here, I’m going to discuss some of my favorite ingredients to help you spruce up your breakfast. No matter what your tastes might be, I’ve got you covered.

I’ll take a look at the best omelet fillings for meat-lovers, vegetarians, health enthusiasts, and more.

Read on to find out more about the best omelet fillings to start your day right. 

You’ll find tips, tricks, and more on how to use different ingredients to customize your perfect omelet. 


In my opinion, avocado is hands-down one of the best additions you can make to an omelet. It’s mild, creamy, and pairs with just about any flavor. 

You can tone down a spicy Southwestern omelet by adding some mashed avocado, or you can complement a cheesy ham and cheddar dish.

Avocados will even go with more challenging ingredients such as smoked salmon.

Better yet, avocado is a powerhouse of essential vitamins, minerals, and healthy fats.

The fruit offers a wide variety of health benefits ranging from heart health to immune support. 

It’s best to add avocado as a side rather than a filling for your omelet. Cooking avocado can make the fruit mushy and better, so it’s best to serve it fresh. 


Spinach is another healthy ingredient versatile enough to add to almost any omelet recipe. 

The leaves have a mild taste that won’t overpower other flavors in the dish. What’s more, they wilt and soften during cooking for a smooth, consistent texture.

I love adding spinach to vegetarian omelets alongside ingredients such as baby greens and sharp cheese.

Not only is it versatile, but it adds nutrients such as vitamin c, iron, and fiber to my meal. 

You should add spinach leaves to your omelet mix before cooking it. That way, you’ll get tender, perfectly cooked leaves distributed throughout the entire dish.


When you’re looking for something a little heartier, mushrooms make an excellent omelet filling. 

Adding mushrooms can give an omelet more substance and help you make it to lunch without needing a mid-morning snack. They’re packed with healthy protein, fiber, and other nutrients. 

Most types of mushrooms make a good meat substitute for vegetarian omelets. Certain species, such as the Chicken of the Woods, can even mimic the taste and consistency of meat.

You may want to saute mushrooms to soften them before adding them to your omelet mix. Otherwise, they may not get a chance to cook all the way through.


Bacon is a breakfast classic, and it’s the perfect ingredient to give your omelet a smoky, crunchy twist.

Adding bacon to your omelet packs even more protein into your meal along with potassium, selenium, and B complex vitamins

The best time to add bacon to your dish is after cooking your eggs, but before folding your omelet. If you add bacon to the wet egg mix, it will lose most of its crunch.

Keep in mind that bacon is fairly salty, so you may want to adjust your omelet seasonings accordingly.

It can also be a good idea to reduce the amount of butter or oil you use to account for the extra bacon grease.

Bell Peppers

Bell peppers can add some sweet, zesty flavor to your omelet. I also like that it gives the dish a bit of color for a more exciting presentation. 

Red, green, and yellow bell peppers all work well in omelets depending on your taste preferences.

While red and yellow bell peppers taste sweet and fruity, green bell peppers are more tart and vegetal.

My favorite way to add bell pepper to my omelet is by dicing and sauteeing a half to a whole pepper.

Cooking it beforehand ensures that it will be soft and sweet inside your omelet. 


If you want your omelet to be thick, creamy, and flavorful, the trick is to add some cheese to the egg mixture before cooking. 

Gruyere is one of my favorite omelet fillings, thanks to its rich flavor and gooey consistency.

It’s an ideal melting cheese that gives omelets an unbelievably smooth, creamy texture. 

As a fairly strong cheese, gruyere doesn’t need much else to give your omelet a kick other than a dash of black pepper. 

However, if you’re in the mood for more protein, its nutty flavor pairs well with smoky meats such as bacon or smoked salmon. 


Like bacon, ham is a breakfast classic that works well as part of an omelet.

It adds protein as well as texture to your dish, helping to make it a more filling start to the day. 

It’s best to cube ham before adding it to your omelet for more even distribution.

Always make sure the meat gets cooked through before adding it, as raw meat may not heat to safe levels.

Keep in mind that ham, like bacon, is high in sodium. You should reduce the amount of seasoning that you add to your egg mix to avoid oversalting your meal.


One of my favorite cheeses to add to my morning omelet is cheddar because it’s tasty, affordable, and versatile.

It’s easy to find a wide range of cheddars in just about any supermarket to fit any budget.

I prefer sharp cheddar in my omelets, as it has a noticeably tangy taste that adds plenty of flavor to the dish.

If you plan on adding other filling ingredients, you may want to opt for a milder cheddar. Doing so will help you avoid overpowering other flavors. 

You can add cheddar to your wet omelet mix before cooking for gooey, cheesy bites.

You can also grate cheddar on top of your cooked omelet for a quick and easy flavor blast. 


Onion is a classic omelet filling and one of the best ways to add some texture to your dish.

It also adds healthy nutrients such as B vitamins, vitamin C, and potassium.  

I prefer to dice onions before adding them to my omelet mix, but you can also add them in long strips if you prefer.

Sauteing your onions beforehand helps to soften them up and release their flavor. 

For those that love the taste of onion but not the texture, shallots make an excellent substitution.

You can add diced and sauteed shallot to your wet omelet mix to add some savory umami flavor while keeping things smooth and creamy.


Sausage makes a hearty omelet filling when you want to add both protein and flavor to your fish.  

Most sausage comes pre-seasoned, making it easy for you to give your dish some spice in a single step. 

There are a wide variety of sausage styles to choose from depending on the type of omelet you’re cooking.

For example, hot sausage can help you spice up your breakfast, while sage sausage is ideal for a mellow veggie-based recipe. 

If you plan on using raw sausage, make sure that you brown it before adding it to your omelet. Otherwise, the meat may not cook all the way through and may be dangerous for consumption.


Scallions are in the same family as onions and share a similar savory flavor. However, they are milder, grassier, and won’t overpower delicate flavors.

You may sometimes find scallions at the store listed as spring onions or green onions.

The entire vegetable is usable, including both the green stalk and the bulb tip. 

It’s important to note that the white parts of a scallion tend to have a stronger onion flavor than the green areas. 

You can add scallions to your omelet mix before cooking or sprinkle diced scallion on top for a fresh crunch. 


Jalapenos are one of the best omelet fillings for spice-lovers. They add a kick to your dish without adding unbearable levels of heat. 

The best way to add jalapeno to an omelet is by dicing and sauteing it first. Doing this softens the flesh and helps to bring out more sweet notes.

Mix cooked and cooled jalapeno to your egg mixture before pouring it into your omelet pan.

For more spice, allow the jalapeno to sit and meld with your eggs for a few minutes before cooking. 

If jalapenos aren’t quite spicy enough for your palette, you may have to go up the Scoville scale to find the perfect pepper. You can try varieties such as Thai chilis or habaneros. 

Smoked Salmon

When I’m feeling fancy, I like to add a touch of sophistication to my omelet with some smoked salmon. 

It adds a savory, complex flavor to your dish while maintaining a buttery-smooth texture. 

I find that smoked salmon works best on its own as a feature ingredient in omelet fillings. It has a rich, smoky taste that can easily overpower other flavors. 

You can add cuts of smoked salmon to your omelet mix, but it’s easy to ruin the delicate fish during cooking.

It can be easier to top your dish with a few thin slices of smoked salmon instead. 

Omelets pack a powerful blast of protein to help you start your day, but they can taste a little bit bland on their own. Fortunately, there is a nearly endless variety of add-ons to choose from that can help you to spice up your morning omelet. 

If you’re looking for some inspiration in the kitchen, adding any of the toppings that we’ve discussed is sure to take your breakfast game to the next level.

Remember, though, that this list of best omelet fillings is just a starting point. Don’t be afraid to get adventurous and experiment with other ingredients as well!

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Written by Erin Elizabeth

Erin is an editor and food writer who loves traveling and trying new foods and fun cocktails. Erin has been writing and editing professionally for 5 years since graduating from Temple University, and has been on the Restaurant Clicks team for 3 years. She has a long background working in the restaurant industry, and is an avid home chef and baker. Her favorite restaurants are those with spicy food and outdoor seating so that she can bring along her dog, Miss Piggy.