Preheat the oven to 375 degrees.
Start by cooking gluten-free lasagna noodles. Add salt to a large pot of water and bring it to a boil over medium-high heat.
Place the noodles in the water and move around until they are all submerged in the water.
Cook the noodles for four minutes. The lasagna noodles will still be firm but will be able to bend slightly.
Pour the noodles into a colander and run cold water over the top to stop them from cooking. Set the noodles aside.
Put together the ricotta filling. Add the ricotta cheese, parmesan cheese, egg, and seasonings to a large bowl. Stir until well combined. The ricotta filling will look nice and fluffy.
Assemble the gluten free lasagna. Start by spreading 1 cup of sauce on the bottom of a 9 x13 baking dish.
Then layout three lasagna noodles. Typically, I lay two next to each other and one on top.
Next, spread the ricotta cheese mixture over the noodles.
Then sprinkle about ⅓ of the shredded cheese.
Lay three or four lasagna noodles over the cheese, spread another cup of sauce over the noodles, and carefully spread the remaining ricotta cheese mixture over the sauce. This gets a little tricky so apply slowly.
Add the rest of the mozzarella cheese.
Finish with one last layer of lasagna noodles and spread one more cup of sauce over the top.
Sprinkle the rest of the cheese over the top.
Tightly cover the dish with foil.
Bake for 55 minutes, remove foil, and bake for another 5 - 7 minutes until bubbly and cheese melts.
Remove from the oven and let the lasagna rest for 20 - 30 minutes.
Serve with remaining sauce.