What to cook for dinner party with author

Hi there,
I'm hosting 4 adults (1 is a pretty well known author) and 4 kiddos under the age of 8. 2 guests are vegetarian. I'm nervous as I want to wow the guests but not be too stressed and also accommodating to the vegetarians. I was thinking of making a Moroccan chicken (Food 52) w couscous as well as a hearty vegetarian chickpea dish and a salad (ottolenghi recipe). For starters maybe mezze (feta, hummus, etc). I've made the chicken and people love it. My husband thinks it's sort of an ugly dish and maybe too heavy for a hot day.
An alternative idea is barely cooked tomatoes, torn basil and burratta tossed w spaghetti. Maybe a roasted shrimp dish on side (ina garten) and grilled bread. Any thoughts what may be best? I'm not a last minute person so the chicken dish is appealing as it's best cooked the day before On the other hand seasonal, light food is always appealing... I never go too simple w guests bc I'm scared it would appear, well too simple! Appreciate any advice. Yes I know I'm overthinking it but I still need help sorting it out. Ps may make a cherry clafoutis for dessert