Harsh punishment?

Okay so I have an 11 and 12 year old and I always have to cook separate for them because they’re such picky eaters 😒 we are Mexican so sometimes I want to cook some Mexican dishes but I usually just cook whatever my kids would eat but today I want to make a popular Mexican dish called mole for me and my husband and I told my kids they’re going to eat it wether they like it or not or they can go to bed without eating dinner because I’m not going to cook separate meals this time and they decided to not eat dinner just because they don’t like it and find it gross 🤨 and then they go on to say that they’re not Mexican they’re American and they only eat American food 🤦🏻‍♀️ would it be a harsh punishment if I don’t cook anything separate for them and send them to bed without dinner?

If they’re really hungry they would eat whatever I make right?