Maybe you should get something like this:
Amazon.com: Braun M880 Multimix 4-in-1 Handmixer: Kitchen & Dining
The immersion blender comes in real handy. Also get one good thick 10" aluminum pan which you can toss in the oven without worry.
Anyway, here's a good way to make pot roast.
Get a piece of chuck roast and salt and pepper it. Brown it on both sides in some oil. Remove from pan and place in crock pot. Defat with a paper towel and deglaze the pan with some red wine. Dump this into the crock pot. Add some low or no sodium beef stock into the crock pot until it covers the roast 3/4 of the way. Add 1 chopped onion, 2 chopped carrots, and 2 sticks of celery, also chopped up. Put the lid on the crockpot and let it cook until it's fork tender, I don't know how many hours, maybe someone can provide guidance. I'd guess all day.
When it's done, remove the roast and try and skim as much fat off the top as possible. Then using an immersion blender, puree the contents of the crockpot. Taste, add salt and pepper, mix it up a bit more and you're done! Pot roast and gravy.
Add mashed potatoes to complete your meal. :)