can we take food and drinks

Yes

From their website: House Rules What can I bring? Food and drink: Patrons are welcome to bring their own food for picnicking in The Ford's entryway gardens, on The Zev or in the seats. During the season, grounds open for pre-show picnicking 90 minutes prior to performances.  Patrons may bring beverages including their own beer and wine. No hard liquor is permitted, except what is for sale by the onsite concessionaire. Bags will be checked at the entrance to the facility. Container size matters. All containers, picnic baskets and coolers must be able to fit under your seats. Containers, picnic baskets and coolers measuring more than 15 inches wide, 12 inches high or 22 inches long won’t be allowed past the tickets gate.