Preheat oven to 350.
Using a spoon, mix crust ingredients (almond meal through rosemary) together until it becomes very thick. Using your hands, form the dough into a ball. Lightly grease a pizza pan or a cookie sheet with olive oil. Place the ball of dough in the center of your cookie sheet or pizza pan and using your hands, push and pat the dough down into the shape of a circle (or an oval). You want to make the dough as thin as possible. Your pizza will be about 12 inches across. Bake JUST the crust in your pre-heated oven for 20 minutes.
While your crust is cooking, prepare your toppings. Toss vegetables in oilive oil and a pinch of salt. If you're using sausage, crumble it into a large saute pan and brown.
After the crust is done, remove from the oven and evenly spread the marinara sauce over the crust. Add the sausage and all remaining toppings evenly over the sauce and bake again for an additional 25-30 minutes.
Get creative and use whatever toppings you like –- try chicken, artichoke hearts, or even broccoli. Enjoy!