Gluten free tuna mushroom lasagna

Created this recipe for a yummy comfort food dinner.

1 package of gluten free lasagna noodles (I prefer brown rice but others like corn noodles. Either will work.)
1 8 oz package of fresh mushrooms - washed and sliced
1/4 cup onion - chopped fine
1/4 cup celery - chopped fine
1/4 cup roasted peppers for color
2 tablespoons butter (margarine if lactose intolerant)
1 tablespoon cornstarch
3/4 cup of milk (almond milk or soy milk will work as well)
1 can of gluten free condensed mushroom soup - I use Health Valley or Pacific
2 cans of flaky white tuna - I use the water based pouch.
2 cups of ricotta cheese
1 egg
11/2 cup parmesan cheese (or lactose free substitute)
Gound pepper to taste

Heat oven to 375 degrees. Cook and drain noodles per the package. In 2 qt saucepan melt butter, cook onion and celery and mushrooms until tender. Stir in cornstarch to make a rue. Add milk, peppers and soup. Cook until bubbly.
In a bowl mix ricotta cheese and egg and 1/2 c parmesan cheese.
Spray 9x13 pan -layer noodles, tuna, 1/2 sauce, 1/2 c parmesan cheese. Repeat. Top with parmesan cheese and if desired crushed potato chips.

Bake for 30 minutes. Pull out of oven and let rest for 10 minutes before cutting and serving. Enjoy with steamed veggie of your choice. (adds color to the meal.)

Enjoy! Can be frozen for later.