Make a party

I'll be hosting some kind of high school reunion party. For sake of money saving, I plan on cooking all the dishes. for your information I am a kind of good at cooking. Unfortunately, many of my friends barely know that i am an -chef since born- requesting somekind of tiramisu cake, pudding with vla etc and there is no doubt that I could make it perfect. and next week, boom ... My weight jumped again. So, is there any suggestion that what is healthy food but do not damage my reputation as a -good in kitchen-?