Photo: Con Poulos; Styling: Paige Hicks
Hands-on Time
25 Mins
Total Time
1 Hour 10 Mins
Serves 6

This cheesy, meatless casserole is best served straight out of the oven, golden and bubbly.

How to Make It

Step 1

Preheat oven to 375°F. Grease a 2 1/2-quart baking dish with cooking spray. In a large skillet, melt butter over medium-high heat. Add onion and mushrooms; cook, stirring, until soft and golden, about 6 minutes. Remove from heat. Add spinach, mix well and season with salt and pepper.

Step 2

Spread about 1/3 of bread cubes on bottom of baking dish, then 1/2 of vegetable mixture and 1/3 of cheese. Repeat with 1/3 of bread, remaining vegetables and another 1/3 of cheese. Top with remaining bread and cheese.

Step 3

In a large bowl, whisk together milk, eggs and mustard. Season with salt and pepper. Pour over strata. Press down on bread mixture with back of a spoon to moisten.

Step 4

Bake until strata is set and center is puffed and golden, 45 to 50 minutes. Serve immediately.

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