"Simple but sophisticated, this Croissant Breakfast Casserole is a 5 ingredient, assemble and bake croissant casserole with prosciutto, tomatoes, and eggs. Only 5 minutes to assemble and 15 to bake!"
3. Cut croissants in half and arrange around the bottom of the cast iron pan. Crack eggs and drop directly onto croissants, spacing them out as needed. Add cherry tomatoes and parmesan cheese, then tuck in the prosciutto and arrange thyme sprigs on top.