Wow, American Amazon offers so much more than the Canadian version! They also have this new "Prime Pantry" option, which seems like it might be helping for those purchasing food hampers (although I don't have Prime and I live in Canada, so maybe not?). In any case, I've grabbed a few more listings that might be helpful, but they're all off the Prime Pantry section, so purchasers will need Prime to buy them.

These links are all American and require Prime to purchase.

Peanut butter

Honey Nut Cheerios, MiniWheats, Frosted Flakes

Granola bars

Canned soup, Chef Boyardee

Tuna

Juice, powdered juice mix

Fruit cups, applesauce

Pasta sauce (family-sized edition), smaller can

Spaghetti (gluten-free), penne

Diced tomatoes

Canned peas, canned corn

A big-ass tub of coffee, creamer if that's your jam

Black tea, herbal tea

Cookies 'cause cookies are great

Pringles, ditto above

A bucket of Goldfish crackers