Don't Toss That Leftover Grilled Cheese! Turn It Into A Comforting Strata - Tasting Table
Briefly

Grilled cheese sandwiches become versatile leftovers when transformed into a comforting strata, utilizing their established flavors for a hearty dish.
Instead of tossing out your leftover grilled cheese, try turning it into a comforting strata for an upgrade.
This strata hack also happens to be quite easy: Cut up the grilled cheese sandwiches into smaller pieces and incorporate them into your favorite recipe.
The ham and cheese strata recipe is a good starting point: Line a baking dish with leftover slices and layer with a mustard and onion spice mix.
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