World's Easiest and Tastiest Swedish Meatballs

We went to a poker party at the Byram's (quite a while ago now), and Crystal had Swedish meatballs on the app menu, along with a bunch of other tasty snacks. They were absolutely delicious! It turns out that they are also ridiculously easy. Before I forget, I thought I would post the recipe on the blog:

Swedish Meatballs
from Crystal Byram

McCormick Swedish Meatballs seasoning packet
McCormick Beef Stroganoff seasoning packet
1 cup sour cream
1 cup water
2 cups milk
2 lbs frozen meatballs
4-8 oz sliced cremini mushrooms

Mix all ingredients in a 4 quart crockpot. Cook on high for 3 hours, stirring occasionally to distribute the sauce.