High Protein Quiche
High-Protein • Gluten-Free Option • Low-Sugar
Introduction
This High-Protein Quiche is a satisfying and flavour-packed meal made with eggs, egg whites, smoky bacon, mozzarella, spinach and a creamy whole-milk filling. Using additional egg whites increases the protein content while keeping the classic soft and savoury texture you expect from a homemade quiche.
Smoked bacon and mozzarella bring plenty of rich, comforting flavour, while spinach, onion and garlic add vegetables and extra nutrients to every slice. A store-bought pie crust keeps preparation simple, and choosing a gluten-free pie crustmakes this an easy gluten-free quiche option.
Perfect for breakfast, brunch, lunch or meal prep, this protein-rich quiche can be enjoyed warm from the oven or served cold the following day. Pair a slice with a fresh salad or vegetables for an easy, balanced meal.
Benefits of All the Ingredients
Gluten-Free Pie Crust
A gluten-free pie crust provides the traditional crisp base of a quiche while making the recipe suitable for people following a gluten-free diet, provided the crust is certified gluten-free.
Using a ready-made crust also significantly reduces preparation time, making this high-protein quiche practical for busy days and meal preparation.
Onion
Onions add natural sweetness and savoury depth to the filling. They provide small amounts of vitamin C, vitamin B6 and folate, as well as naturally occurring plant compounds including quercetin.
Cooking the onion before adding it to the quiche softens its texture and develops a sweeter, milder flavour.
Garlic
Garlic adds plenty of flavour without requiring heavy sauces or additional ingredients. It contains sulfur-containing compounds, including those formed when fresh garlic is chopped or crushed.
Its strong savoury flavour also complements bacon, mozzarella and spinach particularly well.
Spinach
Spinach adds vegetables to the quiche without dramatically changing its texture or flavour.
It provides several important micronutrients, including vitamin K, folate, vitamin A and vitamin C. Spinach also contains iron and magnesium and contributes a small amount of dietary fibre.
Whole Eggs
Whole eggs provide complete protein, containing all nine essential amino acids.
They are also a valuable source of choline, vitamin B12, selenium and other micronutrients. The yolks provide richness and help create the characteristic creamy texture of the quiche filling.
Egg Whites
Egg whites are particularly useful for increasing the protein content of the recipe without adding as much fat as additional whole eggs would.
They consist predominantly of water and protein and contain all nine essential amino acids. Combining whole eggs with additional egg whites keeps the filling rich while increasing its protein-to-calorie ratio.
Whole Milk
Whole milk gives the egg filling a softer, creamier consistency while contributing additional protein and calcium.
It also provides nutrients including vitamin B12 and phosphorus. Using whole milk rather than cream keeps the filling creamy without making it quite as rich as many traditional quiche recipes.
Smoked Bacon
Smoked bacon contributes protein and gives the quiche its distinctive savoury and smoky flavour.
Because bacon can be relatively high in sodium and saturated fat, it works particularly well as a strongly flavoured ingredient alongside lighter ingredients such as spinach and egg whites.
Mozzarella Cheese
Mozzarella adds creaminess and creates the soft, melted-cheese texture throughout the quiche.
It is also a useful source of protein and calcium, with calcium contributing to the maintenance of normal bones and teeth. Its relatively mild flavour complements the smoked bacon without overpowering the eggs, spinach, onion and garlic.