Here is a listing of tools that you will need to prepare most meals at home (assuming you are cooking for 4 people or less).
Pots and Pans:
I prefer non-reactive pots and pans (Stainless steel or enamelized cast iron), as they do not leach metal into your food in the presence of acidic products (such as tomato).
Large pot with cover (3 gallon sized should suffice)

Large size saucier/skillet with cover
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Medium size pot with cover

Medium size saute pan
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Large size sheet tray with a cooling rack that fits above it

Roasting pan
Additionally, if you like grilling, you may want to get a grill pan if you don't already have a grill that you use outdoors:
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Some people really like the George Foreman Grill. My personal opinion is that I really hate it. It does not cook food very evenly, and every time that I have used it, I have burned the outside of the food while the inside is raw. If you like your George Foreman, go ahead and use it.