For a touch of heat, add a pinch of red pepper flakes or a few grinds of black pepper to the egg and salt mixture before tossing with the cauliflower. You can also swap half of the cheddar for another firm, good-melting cheese such as Monterey Jack, pepper jack, or Gruyère to change the flavor while still keeping the ingredient list to four items. If you prefer a slightly firmer, almost “nugget-like” bite, roast the cauliflower for an extra 5 minutes, letting more moisture cook off and the cheese darken further. To scale this up for a big potluck, simply double the recipe and use two trays, rotating their positions halfway through baking for even browning. Leftovers reheat surprisingly well: spread them on a foil-lined tray and warm at 400°F (200°C) for 5–8 minutes to re-crisp the cheese and revive the tender centers.