Make-Ahead Sausage Breakfast Casserole with Cheddar

Easy Sausage Breakfast Casserole Recipe

A common fail with morning bakes is the "soggy bottom," where the bread stays wet while the top gets dry. This happens when the custard doesn't have time to penetrate the bread cubes.

This version solves that by using day old bread and a long chill. The result is a slice that holds its shape and tastes consistent from the first bite to the last.

The Sausage Breakfast Casserole is a great staple for pajamas and coffee mornings. It's a one-pan solution that lets you focus on the guests instead of the stove.

Recipe Specs

Chef Tip: For a brighter look, add a handful of chopped fresh parsley or chives right before serving. The green pops against the orange cheddar.

Decision Shortcut: The Soak Factor

Gathering Your Essentials

What Each Ingredient Does

• 1 lb (450 g) mild lean turkey breakfast sausage
• 75 g diced red bell pepper Why this? Adds color and a mild sweetness
• 225 g day old white bread, cut into 1 inch cubes Why this? Dry bread drinks up more custard
• 115 g shredded sharp cheddar cheese (about 4 oz)
• 10 large eggs (500 g), shelled
• 480 ml 2% milk
• 1 tsp dry mustard powder
• 1/2 tsp fine salt
• 1/2 tsp ground black pepper
• 1 tbsp (14 g) unsalted butter, softened

Equipment Needed

• 12 inch skillet
• 9x13-inch baking dish
• Large mixing bowl
• Whisk
• Spatula
• Aluminum foil
• Instant read thermometer

The Key Steps

Step 1: Brown and Drain the Sausage

Crumble the sausage into a cold 12 inch skillet and add the diced red pepper. Cook over medium-high heat for about 8 minutes, stirring often, until the sausage is well browned with no pink remaining and the pepper is tender. Pour off the excess fat and blot the mixture with paper towels.

Let it cool for 10 minutes.

Step 2: Layer the Base

Grease the 9x13-inch baking dish with the softened butter. Spread the bread cubes evenly across the bottom. Scatter the cooled sausage mixture and the shredded cheddar over the top.

Step 3: Build and Soak the Custard

In a large bowl, whisk the eggs, 2% milk, dry mustard, fine salt, and ground black pepper until smooth with no streaks of white. Pour the custard slowly over the layers. Press the bread cubes gently with a spatula so they are submerged.

Step 4: Chill and Bake

Cover the dish tightly with foil and refrigerate for at least 8 hours or overnight. Preheat the oven to 350°F (180°C). Let the dish sit at room temperature for about 15 minutes while the oven heats.

Bake covered for 30 minutes. Remove the foil and bake for another 20 to 25 minutes until the top is golden and lightly puffed and the center no longer jiggles. The center must read 160°F (71°C) on a thermometer.

Step 5: Rest Before Slicing

Let the casserole rest for 10 minutes. Cut it into 6 squares.

Fixing Common Mistakes

If you notice the center is still wet or "custard y" after the timer goes off, it usually means the bread wasn't dry enough or the soak was too short. Using fresh, soft bread creates a barrier that prevents the egg mixture from absorbing.

Rubbery eggs happen when the dish stays in the oven too long. Since eggs set quickly once they hit a certain temp, a few extra minutes can change the texture from tender to bouncy.

Troubleshooting Guide

Simple Swaps and Add-ins

For a different base, try a Sausage Breakfast Casserole with Hash Browns by replacing the bread cubes with frozen shredded potatoes. Just sauté the potatoes first to remove excess moisture.

If you want something more indulgent, a Sausage Breakfast Casserole with Crescent Rolls uses dough instead of bread, resulting in a fluffier, more pastry-like crust. For those who prefer a different protein, you can find similar builds in a Sausage Egg Cheese Casserole for larger groups.

Scaling the Recipe

• Half Batch (3 servings): Use 225 g turkey sausage, 37 g red pepper, 112 g bread, 57 g cheese, 5 eggs (approx 250 g), 240 ml milk, 1/2 tsp mustard, 1/4 tsp salt/pepper. Bake in a 8x8-inch dish.
• Double Batch (12 servings): Double all ingredients and bake in two 9x13-inch dishes. Do not use one deeper dish, as the center won't cook through before the edges burn.

Storage and Freshness

Store leftovers in a sealed container, chilled. They stay fresh for 3 days. This dish freezes well, which is great for meal prep. Wrap individual slices in foil and freeze for up to 2 months.

To reheat, place a slice in the oven at 350°F (180°C) for 10 to 15 minutes until warmed through. Avoid the microwave if you want to keep the top from becoming rubbery.

Brunch Presentation Tips

To make this Sausage Breakfast Casserole look beautiful, focus on color contrast. The dish is mostly orange and yellow, so add these three accents:

1. Bright Red: Keep the diced red peppers visible on top.
2. Deep Green: Sprinkle fresh chives or parsley after slicing.
3. Fresh White: Serve with a side of crisp, white Greek yogurt or sour cream.

The Texture Trick

The Overnight Soak: Stale bread works like a sponge. Letting it sit for 8 hours ensures the liquid penetrates every piece, resulting in a consistent texture.

The Foil Method: Covering the pan for the initial 30 minutes locks in steam. This allows the eggs to cook through without over-browning the cheese on top.

Fat Removal: Wiping away extra oil from the sausage prevents a "grease pool," which can otherwise compromise the structure of the bake.

High in Sodium