Ingredients
- 4 tablespoons salted butter, softened, divided
- 6 slices white sandwich bread, crusts removed
- 1 cup grated Swiss cheese
- 2 green onions, chopped
- 2 tablespoons chopped fresh parsley
- ½ pound cooked small shrimp
- 1 ½ cups 2% milk
- ½ cup low-fat sour cream
- 3 large eggs
- ½ teaspoon Dijon mustard
- ½ teaspoon salt
What Makes This Dish So Tasty
Cooking Secrets
- Let the bake rest for a few minutes after baking to set and make serving easier.
- If you like a crispier top, broil the dish for the last 2-3 minutes, but watch closely to avoid burning.
Step 1
Butter an 8x8-inch casserole dish. Then, use the remaining butter to lightly spread on the bread slices and cut each slice diagonally. Arrange half of the bread pieces in the bottom of the dish, then sprinkle half of the Swiss cheese, green onions, parsley, and shrimp over the bread. Layer the remaining bread on top, followed by the rest of the cheese, onions, parsley, and shrimp.

Step 2
In a bowl, whisk together the milk, sour cream, eggs, Dijon mustard, and salt until smooth. Pour this mixture evenly over the casserole. Cover the dish and pop it in the fridge for at least 8 hours, or overnight if you have the time.

Step 3
When you’re ready to bake, preheat the oven to 350°F (175°C). Bake the casserole for 30 to 40 minutes, until it’s puffed up and golden on top. Let it sit for about 5 minutes before cutting into squares and serving.

