1. Arrange oven rack on lowest position in oven. Place a cookie sheet on rack. Heat oven to 425 degrees F.
2. Start to prepare frozen Spinach Souffle according to package directions for the microwave except microwave only 5 minutes, until edges begin to puff and center is defrosted.
3. Combine souffle, ricotta, Parmesan, garlic, nutmeg, salt and pepper in a large bowl until well mixed. Pour into pie shell, spreading top evenly with a rubber spatula. Place pie on the cookie sheet and bake until crust is brown and filling is puffed (center may not puff, but thats okay), 32 to 34 minutes.