Organizers are inviting residents of the neighborhood surrounding the school and other Pomona residents to take part in the effort.
The school is collecting canned tuna, peanut butter in plastic jars, macaroni and cheese, rice, and beans.
The rice and beans can be either canned or dry, organizers said.
The items can be dropped off at the school office between 8 a.m. and 4 p.m. until Friday.
Ranch Hills Elementary is at 2 Trabuco Place in the Phillips Ranch community.
All of the items will go to Inland Valley Hope Partners, which provides food to needy families and individuals through its food pantry.
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