Cheese and Onion Quiche | Crust or Crustless Option

Prep Time 10 mins Cook Time 35 mins Serves 8

Delicious caramelized onion quiche with sharp cheddar cheese seasoned with thyme. Enjoy this vegetarian pie for brunch, lunch or dinner!


  • Pie crust 
  • 3 onions, sliced 
  • 1 tablespoon butter
  • 1 tablespoon avocado oil 
  • 4 large eggs
  • 1 cup heavy cream
  • 1/2 cup milk
  • 1/2 teaspoon salt
  • 1 tablespoon fresh thyme
  • 1/4 teaspoon pepper
  • pinch of nutmeg
  • 2 cups sharp cheddar cheese


Prepare crust in a 10" tart pan and bake.  If preparing crustless, generously grease a glass pie pan and set aside. 

In a large skillet add butter and oil and heat on medium-high.  Add onion and cook until golden brown (this make take 15-20 minutes).  

In a large bowl whisk together eggs, cream, milk, salt & pepper, thyme and nutmeg. 

Add half of the onion to the prepared crust or pie plate.  Top with half of the cheese and repeat.  Top with egg/cream mixture and bake at 350 degrees for 35 minutes or until the quiche is golden and the filling is just set.  

Let cool 10 minutes before slicing. 


Recipe Notes

If the onion gets too try and they still need to be cooked, then add a little water to deglaze the pan and add more moisture. 

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