Recipes Breakfast and Brunch Eggs Quiche Crustless Caramelized Onions and Cheese 4.8 (43) 40 Reviews 10 Photos This crustless quiche recipe is buttery and delicious. Mellow and creamy. A wonderful addition to a nice green salad! Submitted by ReboobyQ Updated on September 16, 2023 Tested by Allrecipes Test Kitchen Tested by Allrecipes Test Kitchen The Allrecipes Test Kitchen staff are a team of culinary pros who make and vet recipes using only equipment you'd find in a home kitchen. Staff credentials vary but include training at the Culinary Institute of America; kitchen stints in fine dining restaurants; and countless hours in the test kitchen itself. Meet the Allrecipes Test Kitchen Save Rate Print Share Close Add Photo 10 10 10 10 Prep Time: 15 mins Cook Time: 45 mins Total Time: 1 hr Servings: 8 Jump to Nutrition Facts Cook Mode (Keep screen awake) Ingredients 1 tablespoon butter 2 teaspoons olive oil 1 small onion, diced ¾ cup heavy whipping cream 3 eggs salt and ground black pepper to taste ¾ cup shredded mozzarella cheese ¼ cup grated Parmesan cheese Directions Preheat the oven to 350 degrees F (175 degrees C). Grease an 8-inch square baking dish or pie pan. Heat butter and olive oil in a skillet over medium-high heat; add onion. Cook and stir until softened, about 10 minutes; transfer onion to a plate to cool. Whisk cream, eggs, salt, and black pepper in a bowl; stir in mozzarella cheese, Parmesan cheese, and onion. Pour mixture into the prepared baking dish. Bake in the preheated oven until eggs are set and a knife inserted in the center comes out clean, about 35 minutes. It should be light brown around the edges but not brown on top. Cook’s Note This doesn't rise very much, so if it looks flat, it's normal.It will be hard to get out of the pan even if sprayed with Pam! Editor's Note: Please note the addition of Swiss or Gruyère cheese and spinach, as well as the difference in serving size amount, when using the magazine version of this recipe. I Made It Print 109 home cooks made it! Nutrition Facts (per serving) 168 Calories 15g Fat 2g Carbs 7g Protein Show Full Nutrition Label Hide Full Nutrition Label Nutrition Facts Servings Per Recipe 8 Calories 168 % Daily Value * Total Fat 15g 19% Saturated Fat 8g 42% Cholesterol 113mg 38% Sodium 149mg 6% Total Carbohydrate 2g 1% Dietary Fiber 0g 0% Total Sugars 1g Protein 7g 13% Vitamin C 1mg 1% Calcium 138mg 11% Iron 0mg 2% Potassium 67mg 1% * Percent Daily Values are based on a 2,000 calorie diet. Your daily values may be higher or lower depending on your calorie needs. ** Nutrient information is not available for all ingredients. Amount is based on available nutrient data. (-) Information is not currently available for this nutrient. If you are following a medically restrictive diet, please consult your doctor or registered dietitian before preparing this recipe for personal consumption.