Sounds a little inconsiderate of your husband. I'd have her write her name all over it (the container it is in) and say PLease do not eat this, I'm eating it later. Assuming she does eat her leftovers later. Some kids say they will and then don't. Is there a problem of not enough food? Why does your husband feel that's the only thing to eat? I think I'd just explain that she looks forward to the leftovers and it is one less thing you have to make her to eat . . . so consider them not there. Hands off. Quit yelling over something so silly and move on. Tell him to make himself a sandwich!
Hi there! So hope you come back and tell me how this is going. I think parenting is hard and sometimes we think something is a little strange that is important to our kids but respecting them is important too. Did you have a chat with your husband?
I have to question the reason your daughter is bringing food home from a restaurant. Doesn't she get enough to eat at home? Unless she's is paying for her own individual order, what's the reason you're allowing her to order more food than she can eat in the restaurant? And most pizza places will cook more than one type of pizza on a platter so perhaps you could encourage your children not to order that much pizza in one sitting.
In a house with two teenagers, I am certain that there is PLENTY of food for snacks for all of your family. Allow the teens to go with you and choose their own treats - within reason - as you shop. This way, they will see what each other wants and will more than likely decide to choose something completely different from one another. By allowing your teens to hide food in the "low areas" of the kitchen, you may be creating issues you are certainly going to have to deal with at some future date with both your children. (Even if the food doesn't have to be refrigerated, and the food is properly sealed, mold can "hide out" on the packaging.)
As for your husband, I can only believe he thinks his pilfering of your daughter's leftovers is his "right" as the breadwinner. If you don't allow your daughter to bring food home, I do believe that this behavior will quickly stop. Perhaps you should consider buying him his own special snack foods.