Spinach Mushroom Squares
Creamy spinach and mushroom squares combine savory flavors with cheesy goodness, perfect for a comforting vegetarian main or side dish suited for family dinners or potlucks.
Ingredients
- 2 medium onions, finely chopped ⓘ
- 1/4 lb. mushrooms, thinly sliced ⓘ
- 2 Tbsp. margarine ⓘ
- 4 eggs ⓘ
- 2 pkg. frozen spinach, thawed and drained ⓘ
- 1/4 cup packaged bread crumbs ⓘ
- 1 can cream of mushroom soup ⓘ
- 1/3 cup grated Parmesan cheese ⓘ
- 1/2 tsp. salt ⓘ
- 1/8 tsp. pepper ⓘ
- 1/2 tsp. basil ⓘ
- 1/4 tsp. nutmeg ⓘ
Instructions
- Cook onions and mushrooms in butter in a large skillet until soft.
- Beat eggs until frothy.
- Stir in cooled onions and mushrooms, spinach, bread crumbs, cream of mushroom soup, 1/3 cup Parmesan cheese, salt, pepper, basil, and nutmeg until well combined.
- Spread the mixture in a buttered casserole dish and sprinkle with remaining cheese.
- Bake uncovered at 325°F (163°C) for 1 hour.
Tips & Substitutions
For a creamier texture, consider adding a dollop of sour cream or Greek yogurt to the mixture before baking. You can easily substitute fresh spinach for frozen if you have it on hand; just sauté it until wilted. If you're looking for a gluten-free option, use gluten-free breadcrumbs instead of regular. This dish can also be made ahead of time and stored in the refrigerator before baking.
Serving Suggestions
Serve the Spinach Mushroom Squares as a delightful brunch item alongside a fresh salad or sliced tomatoes. They also pair beautifully with Aunt Myrtle's Goodies for a sweet finish. For a heartier meal, consider serving with a side of roasted vegetables or a light soup. This recipe is perfect for entertaining or a cozy family dinner.
Storage & Reheating
Store any leftovers in an airtight container in the refrigerator for up to 3 days. To reheat, place in a preheated oven at 350°F (175°C) for about 20 minutes or until heated through. You can also microwave individual portions for a quick meal; cover with a microwave-safe lid to retain moisture.
Nutrition & Diet Analysis (per serving)
Each serving of Spinach Mushroom Squares contains roughly 209 calories, with 9g protein, 24g carbohydrates, and 10g fat. It is an excellent source of vitamin C (55% of the Daily Value), vitamin A (40% of the Daily Value), and dietary fiber (25% of the Daily Value), and a good source of protein and calcium. It also contributes 7g of dietary fiber toward your daily target.
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 use fresh spinach instead of frozen for this recipe?
Yes, fresh spinach can be used! Simply sauté it until wilted, then drain any excess moisture. This will enhance the flavor and texture of your dish, making it even more delicious.
What can I substitute for the cream of mushroom soup?
If you prefer a healthier option, you can make a homemade cream sauce using milk, flour, and sautéed mushrooms. Alternatively, a can of cream of chicken soup or even a vegetable broth with a touch of heavy cream can work as a substitute.
How can I make this dish suitable for a vegetarian diet?
This recipe is already vegetarian-friendly! Just ensure that any substitutes for ingredients like the cream of mushroom soup are also vegetarian. If you want to enhance the flavor, consider adding more herbs or even some cheese variations.
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).