I saw this recipe on a friend's blog, and decided to try it for 4 reasons: 1-we have a minor pizza obsession in our house, 2) I love popovers and the idea of taking popover batter and turning it into pizza, brilliant! 3) We had some leftover mozzarella from our last pizza adventure. 4) I got to use my new immersion blender from Motherdear to make the batter. Hopefully I'll have more with the immersion blender soon. In the meantime, here's how I made it.
Vegetarian Popover Pizza Casserole
Preheat oven to 400.
Prepare batter (can be done ahead of time or when your filling is simmering as given in the other recipe)
1 cup milk
1/2 tsp salt
1 cup flour
1 glug of your favorite cooking oil (a glug is a highly unprecise measurement, you pour until you see/imagine the oil "glugging," it's about one tablespoon)
Now prepare your topping. Here's what I did, but you can see the other recipe and the link to the original recipe with other ideas for the meat eaters out there.
a bunch of mushrooms (about 14 oz), sliced
1 onion, diced
2-3 cloves garlic, chopped
10 oz frozen spinach
1 can diced tomatoes
dried basil to taste
salt and pepper to taste
lots of grated mozzarella
a good bit of grated parmesan
Saute the mushrooms until they release their water and shrink, add the onions and continue to cook until they start to soften. Add the garlic and continue to saute for a few minutes. Add the spinach and canned tomatoes and spices and let simmer for a few minutes.
Pour the topping into a 9 x 13 inch pan (I actually used a 7 x 11 inch pan and it worked fine, but I think bigger might be better for this amount of stuff), top with all but 1/4 cup of the cheeses. Pour the batter over the topping, make sure it covers to the edges and corners, top with the remaining cheese and get it quickish into the preheated oven.
It will get puffy and browned, I forgot to watch the clock, but I imagine it was about 30 minutes (and I'll admit I turned up the oven to 425 about 2 minutes into it and I was already impatient) then take it out and let it cool/collapse for a minute, scoop it out and eat it like the pizza lover you know you are.