Ooey-Gooey Breakfast Casserole

Step 1 -Lightly coat a 13x9-inch baking dish with cooking spray.

Step 2 -Put the ham slices between paper towels and place on a microwave-safe plate; warm them in the microwave on high heat for 45 seconds.

Step 3 -Transfer the plate from the microwave and carefully blot the ham slices with clean paper towels to remove any excess moisture.

Step 4 -Add 1 of the ham slices and 1 of the cheese slices to the bottom pieces of each of the croissants, folding the slices as needed to ensure they fit neatly.

Step 5 -Cover the cheese slices with the remaining halves of the croissants.

Step 6 -Place the filled croissants in the prepared baking dish.

Step 7 -In a large bowl, add the eggs, the heavy cream, and the Dijon mustard and whisk until it is combined.

Step 8 -Slowly pour the egg mixture over the croissant sandwiches.

Step 9 -Cover the baking dish with plastic wrap and refrigerate the casserole mixture for at least 8 hours and up to overnight.

Step 10 -Preheat the oven to 350 degrees F.

Step 11 -Discard the plastic wrap and bake the casserole, about 25-30 minutes.

Step 12 -Carefully cover the baking dish with foil and bake the casserole until it is golden-brown and a knife inserted into the center comes out clean, about 15 minutes.

Step 13 -Transfer the casserole from the oven and let it cool, about 10 minutes.

Step 14 -Serve the casserole garnished with the thyme.