Monk Parakeets require a balanced diet of seeds, fruits, and vegetables. Recommended foods include apples, grapes, carrots, and spinach. They enjoy having toys and perches in their cage to provide mental stimulation and exercise. Monk Parakeets also benefit from daily out-of-cage time in a safe, bird-proofed area. Ensure the cage is spacious enough to allow for free movement and provide various perches, toys, and a cuttlebone for beak maintenance.