This irresistible golden brown impossible quiche can be eaten for breakfast, lunch or dinner. This light and delicious crustless ham and cheese quiche will be loved by the whole family. Great for using up leftover ham after the holidays!

There's nothing quite as versatile as a good impossible quiche. You can eat it at any time of the day, by itself or with some easy sides.
It stores well in the fridge for a few days and can be frozen for later if you can't eat it all that quickly. I've purposely kept this crustless quiche bare bones - just ham and cheese. You can, of course, add in some veggies or mix it up with some bacon.
Or just leave it as is because it tastes absolutely delicious. This recipe is a great way to use up leftover ham after the holidays, or just when you need an easy dinner you can throw together quickly.
Why you'll love this recipe...
- Very easy to prepare.
- Versatile - you can add in veggies or use a different protein.
- Great way to use up leftover ham from the holidays.
Looking for ways to use leftover ham? Check out these 25 leftover ham recipes for more inspiration.

WHAT IS IMPOSSIBLE QUICHE?
Impossible quiche, also known as a crustless quiche, is a quiche that requires no pastry base. The reason it doesn't require a base is that a little flour is added to the mixture before baking that separates and sinks to the bottom to form a light crust like magic!
INGREDIENTS YOU'LL NEED
This is such a good dinner to make in a pinch as it's made from everyday ingredients most of us always have on hand! Here's what you'll need to whip up this impossible quiche (full measurements listed below)...
- Olive Oil
- Brown Onion
- Cheddar Cheese
- Parmesan Cheese
- Ham
- Self-Raising Flour - If you don't have self-raising flour simply use a mixture of plain / all purpose flour and baking powder. The conversion is 1 cup of flour to 2 teaspoons of baking powder.
- Milk
- Eggs

STEP BY STEP INSTRUCTIONS
Preheat the oven to 200C / 390F and grease a pie tray (9" x 2" / 22.5cm x 3.1cm).
Heat oil in a small frying pan and cook the onion until translucent.
Combine 1 cup shredded cheddar cheese, parmesan cheese, ham, onion, flour, salt and pepper in a bowl, then pour into a pie dish.

Whisk eggs and milk together in a seperate bowl, then pour over the ingredients in the pie dish. Sprinkle the remaining shredded cheddar cheese on top.

Bake for 40 minutes or until golden and cooked through. Serve warm or cold.

Can you make crustless ham and cheese quiche ahead of time and reheat?
Definitely. Quiche is one of those foods that tastes just as good reheated the next day. I personally prefer to reheat it in the oven but you can also zap it in the microwave too.
Quiche can be stored in an airtight container in fridge for up to 3 days.
Can you freeze quiche?
Absolutely. Quiche freezes really well. Just place it in an airtight container and store in the freezer for up to two months.
What goes with quiche?
You can totally serve quiche on it's own for an easy breakfast or light dinner. I like to pair it with a simple salad and even some potatoes, especially if I'm feeding a few people. Here's a few recipes that go well with this quiche:
- Cabbage and Crunchy Noodle Salad
- Greek Lemon Potatoes
- Middle Eastern Bean Salad
- Crispy Baked Potato Wedges
- Pumpkin, Spinach & Feta Salad
- Apple Salad
MORE EGG RECIPES TO TRY
- Vegetarian Quiche
- Mini Vegetarian Quiches
- Bacon and Egg Pie
- Zucchini and Bacon Slice
- Yorkshire Pudding

TOP TIPS FOR MAKING THIS RECIPE
- You can simply add the onion into the mixture without frying it first but I always find frying onion brings out more flavour and it's worth the extra washing up!
- Feel free to add in some veggies to the quiche - some finely diced capsicum / bell peppers or a grated zucchini would go great!
- You can also try this quiche with bacon instead of ham. Just fry the onion and bacon together first before adding to the rest of the ingredients.
- Great served warm or cold.
If you’ve made this Impossible Quiche I’d love to hear how you enjoyed it! Pop a comment and a star rating below!
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4.82
56 comments & reviews
merrcy
November 6, 2019
mercy
November 7, 2019
maravillosa esta receta desearia saber si puedo hacer con esta receta con pollo Mil gracias Desde Colombia con gran cariño
Cassie
November 7, 2019
Hey Mercy, you can absolutely make this with chicken instead. I'd recommend using shredded chicken but other than that all will be the same.
Hola Mercy, puedes hacer esto con pollo. Recomiendo usar pollo desmenuzado, pero aparte de eso, todo será igual.
Susan Gardem
December 29, 2019
Your recipe (with a slight name change) reminds me of the same recipe. I've made for my young family in the 1980's. it was all the rage and very popular with my friends. We called it an Impossible Pie. We loved it made with tuna as well. Was great in school lunches.
Cassie
December 29, 2019
Making it with tuna sounds like a great addition!
Pam Waugh
April 1, 2020
Me, too. Years ago, early 80's, had a few little cookbooks that had "Impossible" pies. Everything was delicious. Very few ingredients, mostly in everyone's kitchen. And eggs were very cheap.
Cassie
April 2, 2020
I'd love to try and find a few!
Lyndon
April 12, 2020
I have a question,
I made this quiche a couple weeks ago and it was really good for my first time making quiche. My question is if I use a pie crust can I delete the flour out of the ingredients? Does anything else need to be changed for the quiche to turn out?
Cassie
April 12, 2020
Hey Lyndon, just be sure to blind bake the pie crust before baking the quiche but yes, just omitting the flour should be fine 🙂
Barb Henderson
January 30, 2020
I made it last night and it worked out great!
Cassie
January 30, 2020
That's awesome Barb! So glad you loved it!
Bev Beckett
February 5, 2020
This recipe is so easy and DELICIOUS. Combine this dish with a salad and you have a complete meal. I didn’t have Parmesan Cheese on hand so I substituted Mozzarella Cheese. I also had some Baby Bella Mushrooms that I wanted to use before they spoiled. I chopped the mushrooms up and combined them with onions and sautéed them together. The leftovers heated nicely in the microwave. My husband asked if we could have this recipe again.
Cassie
February 6, 2020
I am so happy to hear that Bev! Love your substitutions too. I made it up last week with some mushrooms and capsicum / bell pepper I needed to use up too and it was good. Might do that every time from now on - can never have too many veggies can we!
Richenda
February 18, 2020
Could you cook this in the air fryer?
Cassie
February 18, 2020
Hey Richenda, you absolutely could. The only problem you might have is fitting the tin in your air fryer depending how big your air fryer is. I have seen people turn these into mini quiches in muffin pans so that could work!
Nancy
February 28, 2020
Can heavy cream be used instead of milk?
Cassie
February 29, 2020
Hey Nancy, yes it can - I made this last week using 1/2 heavy cream, 1/2 milk instead of just milk and it was great!
Narell
April 13, 2020
So easy to make Gluten Free just change flour
Amy
April 14, 2020
Can this be made with almond milk instead of regular milk?
Cassie
April 14, 2020
Yep - it might add a slightly nutty flavour but if you are a regular almond milk drinker it shouldn't be an issue 🙂
Heather
April 16, 2020
This dish is delicious! I have made it a handful of times with different combos and it always turns out so delish!! Will continue to make this..well worth the time and effort and so filling! Thank you!
Cassie
April 16, 2020
Thanks Heather! Your comment made my day 🙂 Glad you guys are enjoying this one.