Break the cauliflower into easy-to-eat pieces, and rinse in water. Rub cut ends of garlic around the inside of a microwave safe container. Or coat in minced garlic.
Wrap the cauliflower from Step 1 into plastic wrap, and microwave at 600W for 1.5 minutes, or at 500W for 2 minutes to roughly cook through.
Place finely minced anchovies on top of step 2, (mix in if using fish sauce), and stir in the mayonnaise.
Mix in ketchup as well (it is rich, so add just a little). Bake for 15 minutes in an oven preheated to 390°F/200°C, and it is done once it turns golden brown.
Sprinkle powdered cheese to your liking. This will drastically increase the calories.
Story Behind this Recipe
This is one dish that I got my mayo and ketchup-loving children to eat lots of cauliflower and broccoli.
The ketchup (depending on the brand and amount) will differ on taste, so I think that cooking with a small amount and adjusting it when eating is a good idea. It is healthy if you switch the ketchup for mini tomatoes. Adding lemon juice when I ate this produced yet a different delicious flavor.