ok, well, firstoff- when i read "IF our friend tropical depression Alex stays out of the way"
i assumed you had an annoyingly ever-present aquaintance called alexander, with a hawaiian shirt fixaction and a desperate need for prozac- who might be ruining your event,..... but now i've clued in- so moving swiftly on....
springrolls are something asian. and also nice. tofu, seitan, or another mysteriously accurately meaty asian fake meat, in tiny slivers, jammed inside them, goes unnoticed, i find. (/excessive use of commas). they go good with sweet and sour sauce, peanut sauce, other sauces that i don't know the name of, basically loads of sauces. a mountain of stirfried rice with a bajillion veggies ( beansprouts, water chestnuts, bok choy, carrots, baby corn, sugar snap peas, red pepper slivers, mushrooms?!) in it is generally good too, especially if you have a tonne of things to shake on it (soy sauce, garlic sauce, hot sauce, mushroom sauce- saucy things). crunchy + filling + sauce is a good combo in my books. noodles are good too.
you could always do a sort of spag bol thing with a garlic bruschetta and antipasto and meaty balls instead though- italian cuisine has loads of non-meaty things that don't seem obviously meatless. they also use rice and pasta. oh! and the greeks and lebonese and other peeps of that sord of middle-eastern locale do nice lemony potatoes and hummus and antipasto and falafels and things like that are fabulous as well. don't get me started on chana masala and pakoras and samosas and naans and indian food either. cos i'll get hungry.
um... for your tomatoey dinnery thing, you could do a tomatoey beany casserole (mexican style? shepherds pie style) with a load of delicious mashed potato and decently fake cheese on the top. you could even nick the ratatouille idea, add beans to it, and cover it in the mash and cheesiness. i had baked bean pie a lot as a kid (cos beans are about 5p a can in england, and potatoes are cheap too)- you plonk a load of baked beans into a casserole dish, add optional cooked veggie sausages, spice up the beans with ketchup, tabasco, hp sauce or whatever if required, cover it in mashed potatoes and cheese, and bung it in the oven til its deliciously hot. easy as pie. without actual pie-crust though.
chocolatey is good. chocolatey moouusses with strawberries dipped in chocolate on the top, with shortbread with chocolate chips in it on the side.... chocolate fudge brownies with mint icecream, vanilla icecream, raspberry iecream, almond icecream (icecream) ... frozen hot chocolate freezies/smoothies... anything chocolatey really. its impossible for chocolate to not be good. in fact, i'm gonna prove that now by having chocolate coconut icecream for breakfast.