Strata is incredibly versatile. Use ingredients that you have on hand or put leftovers into service. Any vegetables or meat should be cooked before adding to a strata.
For any strata, whisk together in a bowl until blended:
Have ready:
Or make up your own filling out of ingredients you have on hand. Generously grease a 13 × 9-inch baking dish. Scatter half of the bread cubes over the bottom of the dish. Cover with the filling of your choice and all but ½ cup of the cheese. Top with the remaining bread and sprinkle with the reserved cheese. Pour the egg mixture over the bread cubes. Press down with a spatula until the egg mixture rises to the top and the bread appears well soaked. Cover and refrigerate for at least 2 hours and up to 24 hours.
Preheat the oven to 350°F. Bake until the strata is puffed and a knife inserted into the center comes out clean, about 45 minutes.