Egg in Onion Rings
These egg in onion rings turn thick onion slices into edible breakfast molds filled with egg, melted cheddar, fresh parsley, and optional ham. They're cooked entirely in one pan for an easy, savory breakfast that's ready in about 20 minutes.
Eggs are one of the easiest breakfasts to make, but sometimes I want to serve them in a way that feels a little more interesting without adding a lot of extra work. That's exactly why I like these egg in onion rings. Instead of simply frying the eggs in a pan, thick onion slices become natural little molds that hold the egg, cheese, parsley, and optional ham together. The idea is simple, but the combination works surprisingly well. As the onion rings cook, they soften and become slightly sweeter while still holding their shape. Inside, the eggs cook around the melted cheddar and savory filling, so every piece has a little onion, egg, and cheese in the same bite. I also like that you don't need a special egg ring or breakfast mold for this recipe. The onion does the job itself, and everything cooks in one skillet. The most important thing is to cut the onion rings thick enough and keep the heat around medium. Thin rings become too soft quickly, while very high heat can brown the bottom before the egg in the center has completely set. This is the kind of breakfast I make when I want something quick but don't want another plain fried or scrambled egg. Serve the rings straight from the pan for breakfast or brunch, and you can easily change the filling depending on what you already have in the refrigerator.
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How to Make Egg in Onion Rings
Prepare the Onion Rings
Peel the onion and cut it crosswise into thick slices. Carefully separate the larger rings, keeping them intact so they can hold the egg mixture while cooking.
Prepare the Egg Mixture
Crack the eggs into a bowl. Add the chopped fresh parsley, salt, and red pepper flakes, then whisk until everything is evenly combined.
Heat the Pan
Heat a non-stick skillet over medium heat and lightly coat the surface with olive oil. Arrange the onion rings in the pan, leaving enough space between them to make flipping easier.
Add the Filling
Place small pieces of ham and cheddar cheese inside each onion ring. Keep the filling within the edges of the onion so the rings remain neat and easy to handle.
Pour in the Eggs
Once the cheese begins to soften, carefully spoon or pour the seasoned egg mixture into each onion ring. Fill the rings gradually rather than all at once to help prevent the egg from spilling over the sides.
Cook Until Set
Continue cooking over medium heat until the egg is mostly set and the bottom has developed a light golden color. Avoid moving the rings too early, since the egg needs time to firm up and hold everything together.
Flip Carefully
Slide a wide spatula underneath each onion ring and gently flip it. Cook the second side until the egg is completely set and the onion is tender.
Serve Warm
Transfer the cooked onion rings to a serving plate and enjoy them while warm, when the cheese is still soft and the egg is tender.
Why Onion Rings Work as Egg Molds
A thick onion ring creates a natural border that helps keep the egg and fillings together as they cook. Unlike a metal egg mold, the onion becomes part of the finished breakfast and adds both flavor and texture.
Cooking the rings over medium heat is important because the onion needs enough time to soften while the egg sets. If the heat is too high, the bottom of the egg can brown before the onion has softened or the center has finished cooking.
How to Keep the Egg from Leaking
The easiest way to reduce leaking is to use thick, intact onion rings and place them flat against the surface of the skillet. Very thin or uneven rings leave more space underneath for the raw egg to escape.
Don't pour all of the egg mixture into the rings at once. Adding it gradually gives the first layer a moment to begin setting against the hot pan, which helps create a base for the remaining egg mixture.
Why You'll Love This Recipe
- Ready in about 20 minutes from start to finish
- Uses an onion as a simple edible egg mold
- Made entirely in one skillet
- Cheesy and savory with tender cooked onion
- Easy to customize with different fillings
- A fun alternative to ordinary fried or scrambled eggs
Tips for the Best Egg in Onion Rings
- Use a large onion so you have enough wide rings to hold the filling.
- Cut the onion into thick slices so the rings stay sturdy while cooking.
- Keep the skillet over medium heat to give the onion time to soften.
- Don't overfill the rings with ham and cheese before adding the egg.
- Pour the egg mixture gradually to reduce leaking around the onion.
- Wait until the bottom is properly set before attempting to flip each ring.
- Use a wide spatula and flip gently to keep the filling intact.
Easy Filling Variations
- Skip the ham for a simple meat-free egg and cheese version.
- Replace cheddar with mozzarella for a milder, stretchier cheese filling.
- Add finely chopped bell pepper for extra color and texture.
- Add a small amount of chili sauce or homemade chili oil for more heat.
- Try chopped spinach or fresh herbs with the egg mixture.
What to Serve with Egg in Onion Rings
These egg-filled onion rings are satisfying on their own, but I especially like serving them with toasted bread and fresh tomatoes for a simple breakfast. They also work well alongside sliced avocado, cucumbers, or a small fresh salad if you want a larger brunch plate.
Because the eggs already include cheese and optional ham, I keep the sides fairly simple. If you enjoy a little heat at breakfast, a few red pepper flakes or a small spoonful of chili sauce on the side works especially well.
Storage and Reheating
These egg in onion rings are best served fresh from the skillet while the eggs are tender and the cheese is still warm. If you have leftovers, allow them to cool and store them in an airtight container in the refrigerator for up to 1 day, following the original recipe.
Reheat gently in a skillet over low heat or for a short time in the microwave until warmed through. Avoid cooking them for too long when reheating, since eggs can become firm and rubbery when overheated.
Egg in Onion Rings
These egg in onion rings turn thick onion slices into edible breakfast molds filled with egg, melted cheddar, fresh parsley, and optional ham. They're cooked entirely in one pan for an easy, savory breakfast that's ready in about 20 minutes.