Here's a thread to get you started:
Does anyone do "Freezer Cooking"?
another easy one:
In a freezer bag, put a 3-4 lb. roast (whichever's on sale that day), along with a chopped up onion, about 2-3 Tbsp of your favorite mustard and then some pepper, thyme and a little salt to taste. Take the air out of it as best as you can and freeze.
On serving day, put the frozen roast into a crock pot, along with up to 1 full box of beef broth (I use Wolfgang Puck). Cook on low 8 hours or so. Fork shred the meat. Serve by splitting french rolls and scooping meat into them, along with a slice or two of good white cheese & a couple of tomato slices. Use little ramekins to serve the dipping broth.
Along the same lines (easy!)
Spicy Pork Sandwiches
Do the same as the French Dip recipe, but here's what you put into the bag: 3 lb. boneless pork roast, 1 jar (liquid as well) of sliced pepperoncinis, 3 Tbsp. oregano.
Cook & serve just like the French Dips, but no need for dipping broth.