Prompts are wonderful ways of letting your imagination be free. When writing prompts, don't spend time thinking about what to write -- just write whatever comes to mind. For instance, you might have a prompt: green.
Perhaps you don't think of anything, however a tree comes into your vision, so write about a tree and if a specific sprawling oak in a park comes to mind, veer off in that direction.

So today the prompt is: breakfast.

Go. Keep the pen moving,
Jan