Keto Crustless Quiche
A golden, cheesy crustless quiche packed with smoky bacon, spinach, and Swiss, baked until set and custardy. At just 3.2g net carbs per slice and only 50 minutes total, it's a make-ahead keto breakfast that meal-preps beautifully and reheats in seconds.
Head of Nutrition · June 18, 2026
Nutrition per serving
Per serving · makes 6. Values are estimates; brands vary.
This crustless quiche skips the carb-heavy pastry entirely and lets a rich egg-and-cream custard do the work, loaded with bacon, spinach, and three cheeses. It bakes up tender and golden in under an hour, making it a perfect keto breakfast you can prep once and enjoy all week.
Ingredients
- 8 large eggs
- 1 cup heavy cream
- 6 slices bacon, cooked and chopped
- 2 cups fresh baby spinach, chopped
- 1 cup shredded Swiss cheese
- 1/2 cup shredded sharp cheddar cheese
- 1/4 cup grated Parmesan cheese
- 2 green onions, thinly sliced
- 2 tablespoons butter, for greasing
- 1/2 teaspoon salt
- 1/4 teaspoon black pepper
- 1/4 teaspoon ground nutmeg
Instructions
- 1
Preheat the oven to 375°F (190°C) and generously grease a 9-inch pie dish with the butter.
- 2
In a skillet over medium heat, wilt the chopped spinach for 2-3 minutes until just softened, then spread on paper towels and press out excess moisture.
- 3
In a large bowl, whisk together the eggs, heavy cream, salt, pepper, and nutmeg until smooth and fully combined.
- 4
Stir in the cooked bacon, wilted spinach, Swiss, cheddar, and green onions, then pour the mixture into the prepared pie dish and sprinkle the Parmesan evenly over the top.
- 5
Bake for 32-38 minutes, until the center is set with only a slight jiggle and the top is golden. Let rest 10 minutes before slicing into 6 wedges.
Tips & notes
- Pressing the moisture out of the spinach is key — skipping it leaves a watery quiche. Frozen spinach works too; thaw and squeeze it very dry first.
- Swap the bacon for cooked sausage, diced ham, or sautéed mushrooms (keep mushrooms well-drained) to vary it without changing the carb count much.
- Store covered in the fridge for up to 4 days or freeze individual slices for up to 2 months. Reheat in a 325°F oven or microwave in 30-second bursts.
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Frequently asked questions
- How many carbs are in keto crustless quiche?
- Each of the 6 slices has 3.2g net carbs (4.0g total carbs minus 0.8g fiber), along with 342 calories, 19g protein, and 28g fat — making it an easy fit for a keto breakfast.
- Why is my crustless quiche watery?
- Excess moisture from the vegetables is almost always the culprit. Wilt and thoroughly press the spinach dry before adding it, and drain any other high-water add-ins like mushrooms or tomatoes so the custard sets cleanly.
- Can I make keto quiche ahead of time?
- Yes — it's ideal for meal prep. Bake it fully, cool, and refrigerate up to 4 days or freeze slices for 2 months. Reheat in a 325°F oven for 10 minutes or microwave a slice in 30-second bursts until warmed through.
