Can you give me a strict diet plan for my 11 year old daughter, she has gained a lot of wieght.?

Not enough room here: Take her to see a good dietitian as well as her own doctor. Weight control is more than just diet alone, especially in an adolescent girl. In brief, provide whole, unprocessed foods. Eliminate fast foods and most sugar. Lead by example. Exercise together - have fun moving. Teach her that food is primarily to satisfy hunger, not to turn to when bored, angry, tired or sad.