Try this Taco Egg Muffin Cups recipe, or contribute your own.
Substituting ground turkey or chorizo for the beef alters both the fat content and moisture levels, requiring adjustments to baking times to prevent dry textures. Individual portions like these derive from portable, crustless quiche traditions that adapted easily to American muffin tins in the mid-twentieth century.
Coagulation of egg proteins occurs rapidly at 350 degrees Fahrenheit. Overcooking causes sulfur compounds to release from the yolks, resulting in a rubbery texture and greyish ring. Drain canned black beans thoroughly in a colander before mixing. Excess moisture prevents proper setting in the center of each cup. Cast iron or heavy aluminum muffin pans conduct heat efficiently, promoting even browning along the edges. Coat the tin thoroughly with oil or nonstick spray to prevent adhesion, as baked eggs bond aggressively to metal surfaces.
Freezing cooked egg portions requires rapid cooling on a wire rack to prevent moisture accumulation. Reheat refrigerated units for 30 to 45 seconds at medium power in a microwave.