Yes, you can bring sandwiches to Universal Studios Florida and Hollywood, but you must adhere to specific cooler and container guidelines. According to the 2026 park policies, you are allowed to bring "small snacks" and "food required for special dietary needs." In practice, this means pre-made sandwiches are perfectly fine as long as they are stored in a soft-sided insulated bag no larger than 8.5 inches wide by 6 inches high by 6 inches deep. You are strictly prohibited from bringing hard-sided coolers, glass containers, or large picnic baskets that require a rolling suitcase. It is a peer-to-peer best practice to avoid sandwiches that require heavy refrigeration (like mayo-heavy tuna) unless you have high-quality ice packs, as the Florida and California sun can quickly spoil food kept in a small bag. By bringing your own sandwiches, a family of four can easily save $60 to $80 a day on lunch, allowing you to spend that budget on "must-have" items like Butterbeer or themed souvenirs instead.