This has become one of my favourite LC items, and I've served them to party guests who just loooooved them!

This is how I made them, but you can customize to suit your tastes....

Large Portobello Mushrooms (these are your "crusts")
Red Onion (chopped)
Red Pepper (chopped)
olive oil
minced garlic
1 can crabmeat
8oz (1 pckg) cream cheese
shredded cheese (nacho type - cheddar/mozz/monteray)
parmesan
tomato (sliced)
spices to taste

In a bowl, Mix the softened cream cheese & crab (& chill for a bit, if possible)
Take the stem out of the Portobello, being careful to keep the mushroom intact.
Brush off any dirt with a damp cloth.
Place the mushroom (empty stem side up) on a cookie sheet or in a pan
Spread a bit of olive oil & minced garlic over the mushroom
Spread the crab/creamcheese mixture over mushroom
Sprinkle chopped onion/pepper over top
Place a tomato slice on top
Sprinkle with s&p, basil, whatever spices you like
Sprinkle with parmesan & shredded cheese

Bake at 350 for about 20 minutes, then broil for about 5-10 minutes, until the toppings a browned a bit.

Once the mushroom "pizzas" have cooled a tiny bit, they can be served whole or cut into slices. KNIFE & FORK MANDATORY!
THIS IS MESSY BUT YUMMMMMMY!!!

You could skip the crab/creamcheese and just use pepperoni, chicken, salsa, whatever!!!

Enjoy!!