I would make at least 1 pan of the lasagna vegetarian, in case you have any non-meat persons, unless you are certain you don't.

The dips, 1/3 - 1/4 cup each per person. 4 pounds chips. 2 pounds pretzels.

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For lunch
Tossed salad/ceaser salad
Roasted potatoes & veggies
pasta primavera or lasagna??
chicken dish

for dessert
cupcakes
fruit platter

cheese/cracker tray
about 5 pounds cheeses, some could be spreads or logs.
3 pounds crackers
crudite platter or chip and dip - pls suggest
how about caprese style relish tray with cherry tomatoes, small chunks or balls fresh mozzarella, black and green olives, garnish of fresh basil with a balsamic reduction? Or you could do this as the salad, see this great article:
thepioneerwoman.com/cooking/2011/06/caprese-salad/
OR here:
bellabumsandbellies.com/2013/09/13/cucumber-caprese-relish/

For lunch
Tossed salad/Caesar salad- use 1/2 the amount on the plan for 100 page
pasta primavera or lasagna??- for lasagna, use the lasagna calculator on the spaghetti page. For primavera, about 6 pounds dry pasta
chicken dish- The chicken Marsala on this site is delicious and you would do 1/2 the amount for 100
Add small crusty rolls- 2 per person, and 1 1/2 pounds butter

for dessert
cupcakes- 1 per person
fruit platter- about 6 bites per person, see the fruit tray page on amounts of bites per fruit and make your own selection. Some dried figs, dates and apricots would be in keeping with your theme.

add dinner level coffee, beverage planning page
tea, wine, other beverages are also discussed on the beverage planning page.