Festive Egg Square

Prep: 15 min Cook: 30 min Serves: 6 Cuisine: American

Festive Egg Square is a hearty casserole combining sausage, vegetables, and cheese, baked to perfection—ideal for brunch or holiday gatherings, offering savory flavors and comforting textures.

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Ingredients

  • 1 lb. pork sausage, cooked and drained
  • 1/4 lb. mushrooms, sliced
  • 1/2 c. sliced green onions
  • 1 medium tomato, chopped
  • 4 or 5 slices cheese
  • 1 1/4 c. Bisquick baking mix
  • 6 eggs
  • 1 c. milk
  • 1 1/2 tsp. salt
  • 1/2 tsp. pepper
  • 1/2 tsp. dried oregano leaves

Instructions

  1. Layer the cooked and drained pork sausage, sliced mushrooms, sliced green onions, chopped tomato, and slices of cheese in the baking dish.
  2. In a bowl, beat the eggs, milk, salt, pepper, and dried oregano together until well combined.
  3. Pour the egg mixture evenly over the layered ingredients in the dish.
  4. Bake at 350°F for 30 minutes or until the casserole is set and golden on top.

Tips & Substitutions

For a lighter version, consider using turkey sausage instead of pork sausage. You can also swap the cheese for a low-fat variety or omit it altogether. If you have leftover vegetables like bell peppers or spinach, feel free to add those for extra flavor and nutrition. Make sure to drain any excess moisture from the mushrooms to prevent a soggy casserole.

Serving Suggestions

This Festive Egg Square is perfect for brunch or a hearty breakfast. Serve it alongside a fresh green salad or some roasted potatoes for a complete meal. For a special touch, pair it with a light fruit salad or a side of avocado slices. It also makes a wonderful addition to a breakfast buffet or holiday gathering.

Storage & Reheating

Store any leftovers in an airtight container in the refrigerator for up to 3 days. To reheat, place individual portions in the microwave for 1-2 minutes or until heated through. You can also reheat in a preheated oven at 350°F for about 10-15 minutes, covering with foil to keep it from drying out.

Nutrition & Diet Analysis (per serving)

Each serving of Festive Egg Square contains roughly 529 calories, with 18g protein, 77g carbohydrates, and 19g fat. It is an excellent source of vitamin D (69% of the Daily Value), iron (54% of the Daily Value), and vitamin C (47% of the Daily Value), and a good source of vitamin A. Note that it is relatively high in sodium, at 830mg per serving (36% of the Daily Value).

529 kcal 26% DV
Protein Fat Carbs

Macronutrients

Protein 18.4g 37% DV
Total Fat 19.3g 25% DV
Carbs 76.8g 28% DV
Fiber 10.3g 37% DV
Sugar 5.9g 12% DV

Electrolytes

Sodium 830.3mg 36% DV
Potassium 1175.4mg 25% DV
Cholesterol 215.5mg 72% DV

Vitamins & Minerals

Vitamin A 145mcg 16% DV
Vitamin C 42.4mg 47% DV
Vitamin D 13.8mcg 69% DV
Calcium 491.8mg 38% DV
Iron 9.8mg 54% DV
Diet fit High-fiber
Contains Milk Egg

Estimated from ingredients & per-serving nutrition — verify against package labels for allergies or strict diets.

* % Daily Values based on a 2,000 calorie diet (FDA 2020).

Frequently Asked Questions

Can I make this dish ahead of time?

Yes, you can prepare the casserole the night before. Layer all the ingredients in the baking dish, cover, and refrigerate. In the morning, simply pour the egg mixture over the top and bake as directed. This makes it a convenient option for busy mornings or holiday celebrations.

What can I substitute for the Bisquick baking mix?

If you don't have Bisquick, you can make a homemade version using 1 cup of all-purpose flour, 1 1/2 teaspoons of baking powder, and 1/2 teaspoon of salt. This will work just as well in the recipe and give you a similar texture in the casserole.

Can I freeze the leftovers?

Yes, this casserole freezes well. Allow it to cool completely, then cut into individual portions and wrap tightly in plastic wrap or foil. Store in an airtight container or freezer bag for up to 2 months. To reheat, thaw in the refrigerator overnight and warm in the oven or microwave.

Nutrition is estimated from USDA FoodData Central ingredient data and may vary with brand, portion and preparation — see our methodology. This information is for general educational purposes only and is not medical or dietary advice (disclaimer).

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