Need Ideas for Late Morning Snacks for Grandparents, Aunts, and Uncles

Raw veggies with ranch dip, gluten-free crackers with hummus, cold cuts, gluten-free crackers with cheese dip in between them (like a mini-sandwich). Also, my kiddo loves these dry snap peas with seasoning: https://www.target.com/p/calbee-harvest-snaps-caesar-gree... so that's another idea.

You could also add other things like Fig Newtons, raisins, dried cranberries, dried apples...I was going to suggest trail mix until I remembered most trail mix has nuts, and could be a hazard for kids who have allergies. Vienna sausages may create an issue for some parents, but maybe cubed fruit (watermelon, cantaloupe and strawberries) would be fine.

Pita chips and hummus, chips and salsa, cheese & crackers, tea sandwiches, veggie tray with dip, pigs in blankets, brushetta, mini quiches, meatballs with bbq dip, ham & cheese ball, fruit kabobs.
ETA: obviously the warm items only work if you're bringing them in at 11. If you need to drop off a few hours ahead I would suggest one of the other choices.

I would take dietary limitations into consideration. Hummus and veggie strips are good (healthy and gluten free), gluten-free crackers (labeled) and cheese (include and label some lactose-free products), popcorn balls or rice krispie squares, fruit tray or kabobs (making it finger food), corn chips (no wheat) and salsa.

I'd stay away from anything that needs to be heated, like mini quiches and pigs in blankets, yummy as they sound. Most schools don't have cooking facilities near the classrooms, and cafeterias will be busy with lunch preparation at that hour.

Subway catering Submarine sandwiches cut in small slices

Cheese and crackers, mini sandwiches, muffins or mini muffins, fruit tray, veggie tray .. pretzels .. hummus, dip, crackers ..

When our school does this kind of thing, they do muffins and granola bars, yogurts and fruit.

Mini sandwiches (you can put out Hawaiian sweet rolls, ham, turkey & cheese), hummus & crackers, veggie tray with Ranch, sliced cheese with cheese, fruit, jalapeno jelly over block of cream cheese and bottled water.

Cubed meat and cheese on toothpicks you can add olives or a pickle to it. Meat and cheese roll ups or pinwheels. Good yogurt with granola, cheese and fruit, apple slices with caramel dip, veggies with ranch dressing. Remember it’s a snack so it doesn’t have to be heavy or huge portions.

Have fun!

Anything that is high in protein and low in carbs.