Preheat the oven to 400°F In a large skillet over medium heat, brown the ground beef (or meatballs) . Do not drain.
Add the flour, mix well to coat the beef.
Net, add the gravy packet and water. Stir. Bring to a boil, reduce to simmer when gravy starts to thicken, about 2 minutes. Remove from heat. Stir in cooked pasta, peas and carrots. Spoon into your favorite casserole dish.
For the biscuit topping:
In a medium sized bowl, mix the flour, baking powder and salt. Slowly add the milk and melted butter. Mix until a soft dough, or very thick batter forms.
NOTE: Dough should be loose, but not runny.
Spoon the dough onto the casserole and bake for 20-25 mins or until golden brown and biscuit is set.