You offered, she declined, you have nothing to be guilty about.
My Aunt was this way. Go out to eat and get what you wanted and offer to get hers. She refuses then wants some of yours. She would take it right off you plate until the day I offered, she declined, I came back to the table and she decided she wanted to "try" something, reached to take what she wanted off my plate, and I slapped her hand and told her not to do that again. I was waiting for the riot act from my Dad but it never came as I guess he was sick and tired of her doing it to him. Took a while before she would talk to me tho. I thought it was disgusting myself.
At 14, your daughter should be able to cook what she wants herself anyways. If she is to lazy to cook it or clean up afterwards, let her go hungry. Maybe next time she will "think" a bit more before she says no when you are so gracious to offer. Or, maybe next time make HER cook for you, and have her learn about navigating around a kitchen. It will come in handy later in life for her.