Spray a 9x13 glass or nonstick baking dish with nonstick cooking spray and set aside.
Cook noodles to lower end of cooking range on package directions.
Meanwhile, preheat oven to 400 degrees.
Drain noodles and transfer to a large bowl. Add butter and SPLENDA® Naturals Sugar & Stevia Blend, stir until well combined.
Add egg substitute, sour cream, cottage cheese, milk and vanilla, gently stirring to combine.
In a separate bowl, add frozen blueberries, lemon zest and 1 Tablespoon SPLENDA® Naturals Sugar & Stevia Blend and gently mix until blueberries are coated.
Pour 2/3 of the noodle mixture into baking dish, then spread out blueberries and top with remaining noodle mix.
Sprinkle top with cinnamon, about 1/2 teaspoon.
Bake for 15 minutes at 400F and then lower temperature to 325F and bake for 1 hour.
Take care not to overcook to prevent it from drying out. Remove from oven and let set for 10-15 minutes.
Cut into 24 pieces