Ham, eggs, and biscuits. Truly a breakfast of champions. But say, you know what would improve this meal even more? Combining it all into one dish!
Preheat your oven to 375°F. Split the raw biscuits into halves and arrange 12 of them in an even layer on the bottom of a lightly greased 13- x 9-inch pan. Give them a light press together. Bake the pan in the preheated oven for about 8 minutes. It should be lightly golden, but only partially cooked. Reduce the oven's temperature to 350°F.
Top the baked biscuits evenly with ham chunks, and sprinkle both cheeses on top. Whisk together the eggs, milk, mustard, salt, and pepper in a bowl until combined. Pour that stuff nice and evenly over the ham and cheese.
Halve your remaining biscuit halves again and line them up along the sides of pan. Cover it with aluminum foil, and bake the whole thing at 350°F until the egg mixture sets. It should take around 45 to 50 minutes. When it's done, let it stand for 10 minutes. Sprinkle the chives on top, slice off a nice piece and put as much mustard on top as you darn well please. Enjoy!