How many servings does this recipe make?

This recipe makes 4 servings. You can adjust the portion size directly on this page.

What ingredients do I need for Onion Surprise Casserole?

You need 7 ingredients. The key ingredients include: 1/4 c. + 2 Tbsp. margarine, 3 medium onions (1015 or regular sweet onions), finely chopped, 2 c. grated Swiss cheese, 1 c. crushed saltines (approximately 28 crackers), and more.

Is Onion Surprise Casserole suitable as general?

Yes, Onion Surprise Casserole falls under the General category and is a great choice for this type of meal.

How do I store leftover Onion Surprise Casserole?

Store leftovers in an airtight container in the refrigerator for up to 3–4 days. Reheat gently before serving.

Onion Surprise Casserole Recipe

Name: Onion Surprise Casserole
Prep time: 15 min
Cook time: 30 min
Total time: 45 min
Yield: 4 servings
Ingredients: 1/4 c. + 2 Tbsp. margarine; 3 medium onions (1015 or regular sweet onions), finely chopped; 2 c. grated Swiss cheese; 1 c. crushed saltines (approximately 28 crackers); 2 eggs; 3/4 c. light cream or half and half; salt and pepper to taste

Try this homemade Onion Surprise Casserole recipe the whole family will love. Made with +, onions, Swiss cheese and saltines. Easy step-by-step instruct…

This Onion Surprise Casserole relies on simple, everyday ingredients such as + 2 tbsp. margarine, grated swiss cheese, eggs and light cream or half and half. It comes together quickly and makes 4 servings, at about 636 kcal each. The step-by-step instructions below are written to be easy to follow, even on a busy day.

It's versatile enough for an easy weeknight dinner yet satisfying enough for guests at the weekend. Serve it with your favorite sides, and keep any leftovers for a quick meal the next day.

Updated Jun 30, 2026

Serves 4 General

Servings: persons

1/4 c. + 2 Tbsp. margarine
3 medium onions (1015 or regular sweet onions), finely chopped
2 c. grated Swiss cheese
1 c. crushed saltines (approximately 28 crackers)
2 eggs
3/4 c. light cream or half and half
salt and pepper to taste

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Quick Info

Servings
4 servings
Calories
636 kcal
Category
General

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