Spinach & Turkey Sausage Overnight Egg Bake

By , Test Kitchen Director · Reviewed by AislePrompt Editorial · ·

A protein-rich, make-ahead casserole with lean turkey sausage, fresh spinach, and creamy egg custard, ideal for busy mornings. This american-inspired breakfast ready in about 65 minutes combines turkey sausage, fresh spinach, eggs into a breakfast that fuels the morning without the midday crash — make-ahead-friendly and balanced enough to anchor the first meal of the day. Each serving lands at about 380 calories and feeds 6, so it sits comfortably in a weekly breakfast rotation alongside fruit, yogurt, or coffee. Tap "Plan a meal with the AI" below to drop this recipe into your week and send the ingredients straight to Instacart. Nutrition values are approximate, calculated from USDA FoodData Central (fdc.nal.usda.gov) — verify against ingredient labels for any health-driven dietary plan.

Prep: 20 min Cook: 45 min Serves 6 American cuisine 380 cal/serving
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Ingredients

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Instructions

  1. Step 1: Preheat oven to 350°F (175°C). In a large skillet over medium heat, cook 12 oz turkey sausage, breaking into small crumbles, for 8-10 minutes until browned and cooked through. Drain excess fat and set aside.
  2. Step 2: In a large bowl, whisk together 8 large eggs, 1 1/2 cups milk, 1/2 teaspoon garlic powder, 1/4 teaspoon onion powder, 1/4 teaspoon salt, and 1/4 teaspoon black pepper until smooth.
  3. Step 3: Stir in 2 cups chopped fresh spinach and 12 oz cooked turkey sausage crumbles until well combined.
  4. Step 4: Pour the mixture into a greased 9x13-inch baking dish and spread evenly. Sprinkle 1/2 cup shredded mozzarella cheese and 1/4 cup shredded Parmesan cheese evenly over the top.
  5. Step 5: Cover with aluminum foil and bake for 30 minutes. Remove foil and bake for an additional 15-20 minutes, until the center is set and a knife inserted comes out clean.

Frequently asked questions

How long does Spinach & Turkey Sausage Overnight Egg Bake take to make?

Total time is about 65 minutes (20 min prep + 45 min cook). Most home cooks find this fits comfortably into a busy morning; prep components the night before to save active time.

How do I store leftover Spinach & Turkey Sausage Overnight Egg Bake?

Cool to room temperature within 2 hours, then store in an airtight container in the fridge for up to 4 days. Reheat in the microwave or oven; egg- or grain-based items may need a splash of milk or water to refresh texture. Cold-served items (overnight oats, smoothies) keep 2–3 days in the fridge.

Can I substitute ingredients in Spinach & Turkey Sausage Overnight Egg Bake?

Yes — most ingredients in this recipe have flexible swaps. For oil, use any neutral high-smoke-point oil (avocado, grapeseed, refined coconut). For aromatics, dried herbs at ⅓ the volume of fresh work in a pinch. The full ingredient list is shoppable on Instacart so you can see substitutes in real time.

How do I scale Spinach & Turkey Sausage Overnight Egg Bake for a different number of people?

The recipe is written for 6 servings. Multiply each ingredient by (your serving target / 6). Cook time stays roughly the same up to 2x; for 3-4x batches, switch from a skillet to a sheet pan or stockpot so the food isn't crowded — overcrowding steams instead of browns.

What goes well with Spinach & Turkey Sausage Overnight Egg Bake?

American breakfast like this pair well with a simple grain (rice, couscous, or crusty bread), a quick salad with acid (lemon vinaigrette, pickled onions), and a pan sauce or yogurt-based dip. Tap "Plan a meal with the AI" to get specific side suggestions.

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