Here is a recipe from thinner.com. You could make it in advance & heat up one slice at a time for breakfast.
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Here is an excellent recipe for crustless quiche from Fran McCullough's Low Carb Cookbook.
Basic Quiche-Serves 6, 2.4g carbs per serving
Butter for quiche pan
6 large eggs
1 cup heavy cream
1 cup shredded cheese-cheddar, swiss, whatever you like
Salt and pepper
Preheat oven to 350. Butter an 8" quiche pan (glass pie pan works too). Beat eggs in bowl with cream, salt and pepper. Add cheese, mix well, pour into pan. Bake 40 minutes or until golden brown on top. Serve hot, warm or room temperature.
Optional add-ins for minimal carbs-1/2 cup crumbled crisp bacon, or 1/2 cup diced ham.
Spinach quiche-Add 1 cup cooked, speezed dry chopped spinach and a little nutmeg