Easy Cheesy Breakfast Egg Casserole Step-by-step instructions

Before you start

Before beginning, ensure all ingredients are measured and ready. Preheat your oven to 350°F (175°C) so it is ready for the baking phase. Grease your 9x13 inch glass baking dish thoroughly with butter or non-stick cooking spray to prevent sticking.

Have a large skillet, a mixing bowl, and a whisk within easy reach. Preparing these items ahead of time streamlines the cooking process, allowing you to move smoothly from browning the sausage to mixing and finally baking the dish without any unnecessary delays.

Instructions

Sautéing the base

1. 1Prepare the meat and vegetables
   Heat a large skillet over medium-high heat. Add the ground sausage and cook, breaking it into small pieces with a spatula, until it is fully browned and no longer pink. Drain any excess fat. Add the diced bell peppers to the skillet and sauté for three to four minutes until they are slightly softened. Remove from heat.
   Look for Sausage is browned and peppers are softened
   Safe temperature 160°F (71°C) internal temperature (ground meat)
   Tip Ensure the sausage is cooked through to at least 160°F (71°C) to ensure food safety.

The sausage should be browned and crumbly, with no signs of pink. The bell peppers will have softened and become slightly translucent, having absorbed some of the savory juices from the meat. Ensure all excess fat is drained from the skillet before proceeding, as this keeps the final dish from becoming overly rich and ensures the eggs set properly.

Mixing the ingredients

2. 2Combine the egg mixture
   In a large mixing bowl, crack the eggs and whisk them thoroughly until the yolks and whites are fully combined and no streaks remain. Stir in the cooked sausage, sautéed peppers, and half of the shredded cheddar cheese until well incorporated. Season with salt and pepper if desired.
   Look for Mixture is uniform and well combined
   Tip Whisking vigorously incorporates more air, contributing to the fluffy texture of the final casserole.

The egg mixture should be uniform in color and texture, with the sausage, peppers, and cheese evenly distributed throughout. Whisking should be thorough, leaving no large clumps of egg white, which ensures a consistent rise during the baking process. Once everything is combined, the mixture should look thick and ready to be poured into the baking dish.

Baking to perfection

3. 3Bake the casserole
   Pour the egg mixture into a greased 9x13 inch glass baking dish. Sprinkle the remaining cheddar cheese evenly over the top. Bake in a preheated oven at 350°F (175°C) for 35 to 40 minutes, or until the eggs are set and reach an internal temperature of 160°F (71°C). Let the casserole rest for 5 minutes before slicing and serving warm.
   Look for Eggs are set and cheese is bubbly and golden
   Safe temperature 160°F (71°C) internal temperature (egg dishes)
   Tip Using a glass dish allows for even heat distribution and beautiful presentation when serving.

The casserole is finished when the top is golden and the center is firm to the touch. The cheese should be melted and bubbling, creating a delicious, savory crust.

Let the dish rest for a few minutes on a wire rack or heat-safe surface; this allows the internal temperature to stabilize and makes it much easier to cut into perfect, tidy squares for serving.

Common mistakes

A common mistake is failing to drain the fat after cooking the sausage, which can result in a heavy or oily casserole. Another error is overbaking, which makes the eggs tough and dry; always monitor the oven closely toward the end of the cooking time.

Avoid using a cold baking dish if possible, as it may increase the required bake time. Finally, forgetting to let the casserole rest for five minutes can make it difficult to slice cleanly, as the structure needs a moment to firm up.

How to tell it’s done

The casserole is done when the center is completely set and no longer appears liquid. The edges should be slightly puffed and golden brown, and the cheese on top should be melted and lightly browned.

Using a food thermometer, check the center of the casserole to ensure it reaches an internal temperature of at least 160°F (71°C) to guarantee the eggs are fully cooked and safe to serve.

• Ground meat: 160°F (71°C) in the thickest part
• Egg dishes: 160°F (71°C) in the thickest part