When can I eat after my colonoscopy procedure?

Avoid alcohol. You might want to avoid alcohol with that first meal. The alcohol can interact with the sedatives you are given and increase the effects of both.
Within an hour. Usually you can have fluids in recovery and should be able to eat abreakfast within 2 to 3 hours. This depends on how you feel and if you have any nausea afterward. It would wise to start slowly and avoid greasy and acidic foods initially (eg, bacon sausage, orange juice). Toast, cereal, coffee/tea should be safe. Later in the day you may resume your regular diet.