Looking for a quick, easy, and delicious meal? This Easy Crustless Spinach Quiche has you covered! With no crust to worry about, it’s perfect for those busy mornings or lazy dinners when you just want something simple. Just mix, bake, and enjoy a meal that’s as easy as it is satisfying. But don’t let the simplicity fool you—this quiche is loaded with flavor.

Serve your quiche with a side of our crispy breakfast potatoes for a meal people won’t be able to get enough of!

Why Our Recipe

  • Quick and easy: No crust, no fuss—just mix, bake, and enjoy!
  • Loaded with flavor: Spinach, mushrooms, feta, and cheddar for the perfect combo.
Crustless spinach quiche with one piece removed.

We absolutely love quiches. A good quiche can be served up for breakfast, brunch, lunch, dinner, or just a good midnight snack. They are a complete meal with plenty of protein, fat, and veggies, so you will feel good about serving it up to your family. Don’t worry, all they’re going to notice is that they love it, so that whole ‘healthy’ thing can be our little secret. It is savory and cheesy and delicious, and so easy to make!

Ingredient Notes

  • Olive Oil: You can substitute it with any neutral oil like vegetable or canola oil.
  • Sweet Onion: A small sweet onion adds a mild, slightly sweet flavor. If you don’t have sweet onions, yellow or white onions will work.
  • Mushrooms: Both white or cremini mushrooms work here.
  • Garlic: Fresh garlic is best for flavor, but you can substitute with 1/2 teaspoon garlic powder if needed.
  • Frozen Spinach: Be sure to fully thaw and drain the spinach to avoid extra moisture in the quiche. Press it with a paper towel to remove as much water as possible. Fresh spinach can be used as a substitute. For a detailed explanation, please read this article on substituting fresh spinach for frozen. You’ll need to remove stems, cook it in a skillet over medium-high heat for a few minutes, and then (just like frozen) remove as much liquid as possible from it.
  • Feta Cheese: Feta gives the quiche a tangy bite, but you can swap it with goat cheese for a milder flavor using the same amount.
  • Cheddar Cheese: Sharp cheddar adds the most flavor, but mild cheddar works too. For variety, try using Swiss, mozzarella, or even a blend of cheeses.
  • Eggs: There’s no good substitute for eggs in this recipe. It’s a quiche after all!
  • Milk: 1%, 2%, or whole milk all work here.

Adding a Crust

Is it still a quiche without a crust? Of course, it is! A quiche uses a higher ratio of milk to eggs, which gives it a softer, silkier texture compared to a frittata, making it perfect for pairing with a flaky crust. While this quiche is wonderfully creamy and custard-like without a crust, you can easily add one if you prefer. Simply use a frozen, pre-made crust or make your own from scratch—no par-baking needed! Just spoon the filling directly into the crust and bake.

A piece of crustless spinach quiche on a plate.

Deep Dish Pie Plate

This recipe is designed for a standard deep-dish pie plate that has a depth of 2 to 2.5 inches. There are generally two different pie plates that are sold in stores. One is a standard deep dish, and another is a more shallow dish (1 to 1 1/4 inch deep). With a quiche, you want to make sure you have a good thick layer of filling so a standard deep-dish pie plate will work best. 

Storage & Reheating Instructions

Refrigerate leftovers in an airtight container for up to 3 days.

To freeze, cool the quiche completely, then wrap individual slices tightly in plastic wrap and place them in a resealable freezer bag. Freeze for up to 3 months. Thaw slices in the fridge overnight before reheating.

Reheat slices in the oven at 350°F for 10-15 minutes until warmed through.

Reheat slices in the microwave on high in 30-second increments until hot.

Watch the video below where Rachel will walk you through every step of this recipe. Sometimes it helps to have a visual, and we’ve always got you covered with our cooking show. You can find the complete collection of recipes on YouTube, our Facebook Page, or right here on our website with their corresponding recipes.