This recipe was borrowed and adapted from
http://www.myrecipes.com/recipe/polenta-lasagna-10000001108269/. Being gluten free, most of the veggie "meat" substitutes are off limits, as they contain wheat. These products are highly processed and not that great for you anyway, so I'm not all that disappointed in having to omit that. I replaced it with veggies I had on hand.
I started by prepping my ingredients:
Tube of polenta, sliced into 18 rounds
2 small onions, chopped roughly
Small zucchini, halved and sliced
About 6-8 asparagus spears, with chunky ends cut off, cut into big pieces
About ten large white mushrooms, sliced
10 oz of frozen spinach, thawed, with moisture pushed out (fresh would have been better)
I started the oven preheating (350) and spread a few teaspoons full of jarred marinara sauce in the bottom of a square pyrex baking dish. Next, I layered 9 of the polenta rounds into the dish.
Began by sweating the onions, adding salt, pepper, and herbs de provence;
Add green vegetables, allowing to saute for about 5 minutes
Add mushrooms and garlic, until the shrooms soften a little
Add the remaining sauce. I chose Trader Joes Three Cheese Marinara.
Allow to simmer for about ten minutes. It seemed thick, so I added about a 1/4 water and let it simmer as well. This is a good time to add more spices, if desired.
Layer the vegetable mixture over the polenta rounds in your square pan, and top with desired about of mozzarella/italian cheeses. Top again with polenta rounds and layer with vegetables and top with cheese.
Bake covered for 30 minutes, then an additional 15 minutes uncovered. Cool 5 minutes before eating.
This turned out really delicious. Not too saucy, nor too cheesy. Even Sean ate it. A Keeper for sure.