Shel boy said in the comments under the chocolate oat recipe thing that the whole thing comes to just under 500 calories?! Or 250 when shared between 2!
The creme egg is 177 and the malteser bunny is 159 = 336 calories. Plus about 50g oats, a tablespoon of crunchy peanut butter and the banana, I think it’s closer to 800 (haven’t even bothered to guess the hot chocolate powder and oat milk in that figure).
maybe her 500 calorie estimate for the whole thing is without the seasonal Easter chocolate on top
otherwise it’s closer to 500 when shared between 2!