Deep-Dish Tuna Pie
["pie crust (for the top)", "1 (9 1/4 oz.) can tuna", "1 c. chopped onion", "1 medium potato, peeled and diced", "1/4 c. water", "1 (10 3/4 oz.) can cream of mushroom soup", "1/3 c. milk", "1/3 c. Parmesan cheese, grated", "1 (16 oz.) pkg. assorted frozen vegetables", "1 beaten egg", "1 Tbsp. lemon juice", "1/4 tsp. pepper", "3/4 tsp. dried dill weed"]
["In a large skillet, cook onion and potato in water, covered, about 7 minutes; drain off liquid.", "Stir in soup, milk, cheese, lemon juice, dill weed and pepper.", "Cook until bubbly.", "Stir in frozen vegetables and tuna.", "Spoon into an ungreased 2-quart casserole."]
["pie crust", "tuna", "onion", "potato", "water", "cream of mushroom soup", "milk", "Parmesan cheese", "frozen vegetables", "egg", "lemon juice", "pepper", "dill weed"]