I'm Tired of My Kids' Obsession with Ice Cream for Dinner

So here's my situation. I have two kids, a 5-year-old and a 3-year-old who both live on the edge when it comes to dessert time. But lately, they've turned into little ice cream fiends, insisting every night that dinner should be ice cream instead of mac and cheese or pizza. It's like the moment they taste their food for breakfast, lunch, or actual dinner is just an appetizer for what they really want, something cold and creamy at 8 PM sharp. I've tried explaining to them that it's not healthy or filling, but their logic is as tight as a fly in a spider web: 'But mommy, we're full. We don't need food.' Great, I respond with my own logic. 'Then why do you still want ice cream?' They look at me blankly and reply, 'Because it tastes good, Mommy!' Now, here's the twist. Last night, I caved to their pleading. And they were right, it was a delightful end to the day. But this morning? No one wanted to eat anything solid or even talk about breakfast until they had some kind of sugary cereal that didn't require teeth. I find myself wondering if my kids are secretly from another planet where ice cream for dinner is not only acceptable but the ultimate after-school activity, or if it's just me being a bad parent who can't say no to big eyes and tiny cries. Either way, it's making mealtime more stressful than trying to find socks that match. So there you have it, your typical night in my house where ice cream is not the prize at the end of the rainbow but the starting point for every day after. I'm all ears if anyone has any tips on how to turn this around without breaking up the family or turning into a monster who denies them dessert.