
Make a ham and cheese egg bake with broccoli, mushrooms, peppers, and cheddar. A practical make-ahead breakfast casserole that slices cleanly and reheats well.
Cook the vegetables until their moisture has mostly evaporated before they go into the dish; this is the key to clean, not watery slices.
Bake until the centre is just set and let the casserole rest for 10 minutes before cutting. It will finish setting as it stands.
Use reduced-fat cheddar if preferred, but grate it yourself for the best melt; pre-shredded cheese can make the texture less smooth.
We use affiliate links, which may earn us a small commission at no extra cost to you.
Ingredient amounts update instantly.
Heat the oven to 175C fan / 190C conventional. Coat a 20 cm square baking dish with cooking spray, then scatter the base-layer cheddar evenly over the bottom.
Heat the olive oil in a large skillet over medium heat. Cook the scallions, mushrooms, red pepper, and broccoli for 5 to 7 minutes, stirring often, until tender and any liquid from the mushrooms has mostly evaporated.
Stir in the ham and tomato for 1 minute, just until warmed through. Spread the filling evenly over the cheese in the baking dish. Let it cool for a few minutes while you make the egg mixture.
Whisk the eggs, egg whites, milk, salt, and pepper until evenly combined. Pour slowly over the filling, then sprinkle with the topping cheddar.
Bake for 30 to 35 minutes, until the centre no longer looks liquid and a knife inserted near the middle comes out without raw egg. Rest for 10 minutes before slicing into 6 portions.
Save this recipe to one of your meal plans or browse your existing plans.
Everything you want to know about this recipe.
This ham and cheese egg bake is a practical breakfast casserole for days when one pan needs to cover several meals. It combines diced cooked ham, broccoli, mushrooms, peppers, and two layers of cheddar in a gently set egg base. The result is savoury and substantial without relying on a heavy cream sauce.
It is a good use for leftover ham, but it also works with a thick slice of cooked ham from the deli counter. Serve it warm from the oven for breakfast or pack a chilled slice with a simple salad for lunch.
The vegetable filling is cooked before it reaches the baking dish. Mushrooms, broccoli, and tomato all carry water; giving the mushrooms time to release and evaporate their moisture keeps that liquid out of the egg mixture. Seeding the tomato adds another small safeguard.
Whole eggs provide richness and structure, while egg whites add volume and protein without making the casserole overly heavy. The first layer of cheddar helps anchor the filling, and the second gives the surface a properly melted finish. Letting the bake rest for 10 minutes is not optional if you want tidy slices: the residual heat completes the set.
For meal prep, cool the bake fully, divide it into portions, and refrigerate in an airtight container for up to four days. Reheat only until hot. A microwave works well for one slice; use medium power and short bursts so the eggs stay tender.
For a freshly baked morning, cook the ham and vegetable filling up to a day ahead and refrigerate it separately. Assemble with the eggs and cheese just before baking. Freezing is not the best default for this version because the vegetables can release water when thawed.
Return the dish to the oven for a few more minutes. The centre should no longer ripple when the dish is gently moved, but avoid baking until it is completely firm throughout because carryover heat continues the cooking during the rest.
The filling was probably too wet. Cook mushrooms until dry, seed the tomato, and avoid piling raw watery vegetables into the dish. A very deep baking dish can also slow the set, so use the stated 20 cm square dish.
This usually means the casserole was overbaked or reheated for too long. Take it out as soon as the centre is set and use medium microwave power for leftovers.
Pair a warm slice with toast and fruit for breakfast, or serve it with a sharp green salad for lunch. For another make-ahead morning option, try High-Protein One-Pan Breakfast Burritos. The broader Breakfast Recipes collection has more practical ideas for the week.
Nutrition is an estimate per slice and will vary most with the ham and cheddar you choose, especially their sodium and fat content.
Serving Size: 1 slice (1/6 of bake)
* Reference intakes are based on an average adult's 8,400 kJ / 2,000 kcal diet. Your needs may be higher or lower.
Yes. Bake, cool, and refrigerate the portions for up to four days. You can also cook the filling the day before, refrigerate it, then whisk and bake the egg mixture when you are ready to serve.
Mushrooms and tomatoes release considerable water. Cook the mushrooms until the pan is mostly dry, seed the tomato, and let the cooked filling cool briefly before the eggs are added.
Microwave an individual slice at medium power in short intervals until warm, or cover and reheat in a low oven. Stop as soon as it is hot; eggs become rubbery when overheated.
Yes. Use similarly sized, cooked vegetables that are not watery, such as spinach squeezed dry, asparagus, or finely chopped courgette cooked until its moisture has evaporated.
See how other home cooks made this recipe, then share your own experience.
6 ratings
How would you rate this recipe?
Used smoked ham and kept the added salt light, which was the right call. The pepper, broccoli, and cheddar gave it plenty of flavour already.
The 10-minute rest was useful. I cut it too early on my first attempt, then made it again and the portions held together much better.
I made the filling the night before, then added the eggs and baked it in the morning. That made a proper hot breakfast much easier on a busy day.
A straightforward use for leftover ham. I used a well-drained handful of spinach in place of the mushrooms and it worked well.
I baked it on Sunday and reheated portions for work breakfasts. It stayed tender, especially after letting it rest before cutting.
Cooking the mushrooms until dry made this slice neatly instead of going watery. The broccoli and ham were a good balance with the cheddar.
Add your personal creations and build your own recipe collection.