Fresh tomatoes and spinach pair well with nutty Asiago and tangy feta cheese in this make-ahead dish that's great for lunch, brunch or dinner. Substitute Parmesan, Romano, or sharp provolone cheese for the Asiago, if you prefer. Presliced mushrooms and packaged spinach provide a head start. A single serving of this strata contains about a third of your daily calcium needs

Yield 10 servings

===Ingredients===
  * 2  (8-ounce) loaves French bread baguette, cut into 1-inch-thick slices
  * Cooking spray
  * 1  cup  chopped onion
  * 4  garlic cloves, minced
  * 1  (8-ounce) package presliced mushrooms
  * 1  tablespoon  all-purpose flour
  * 2  (7-ounce) bags baby spinach
  * 1/2  teaspoon  salt, divided
  * 1/2  teaspoon  black pepper, divided
  * 3  cups  thinly sliced plum tomato (about 1 pound)
  * 1  (4-ounce) package crumbled feta cheese
  * 3/4  cup  (3 ounces) grated Asiago cheese, divided
  * 3  cups  fat-free milk
  * 2  tablespoons  Dijon mustard
  * 1 1/2  teaspoons  dried oregano
  * 5  large eggs, lightly beaten
  * 4  large egg whites, lightly beaten

===Preparation===
  - Preheat oven to 350°.
  - Place bread slices in a single layer on a baking sheet. Bake at 350° for 12 minutes or until lightly browned.
  - Heat a large nonstick skillet coated with cooking spray over medium-high heat. Add onion, garlic, and mushrooms; sauté 5 minutes or until tender. Sprinkle flour over mushroom mixture; cook 1 minute, stirring constantly. Add 1 bag of spinach; cook 3 minutes or until spinach wilts. Add remaining spinach; cook 3 minutes or until spinach wilts. Stir in 1/4 teaspoon salt and 1/4 teaspoon pepper.
  - Place half of bread slices in bottom of a 13 x 9-inch baking dish coated with cooking spray. Spread spinach mixture over bread. Top with tomato slices; sprinkle evenly with feta and half of Asiago cheese. Arrange remaining bread slices over cheese. Combine 1/4 teaspoon salt, 1/4 teaspoon pepper, milk, and remaining ingredients, stirring well with a whisk. Pour over bread; sprinkle with remaining Asiago cheese. Cover and chill 8 hours or overnight.
  - Preheat oven to 350°.
  - Uncover strata; bake at 350° for 40 minutes or until lightly browned and set. Serve warm.

source: Cooking Light, DECEMBER 2002
http://find.myrecipes.com/recipes/recipefinder.dyn?action=displayRecipe&recipe_id=399164

tags: vegetarian