Although cats are carnivores, eating some vegetables can provide them with vitamins and offer many benefits. Below is a list of vegetables that cats need; see if you've ever given them to your cat.

Broccoli is rich in vitamin C and antioxidants, which are good for a cat's heart and immune system. It can boost a cat's immunity and prevent disease.
Tomatoes contain a large amount of water and vitamin C, which can replenish a cat's daily water needs. The lycopene in tomatoes can also help prevent obesity in cats.
Spinach contains iron, calcium, and folic acid, which can protect a cat's cardiovascular system. It also contains a large amount of vitamins and has some anti-inflammatory properties.
Corn is rich in vitamin B2, which can enhance skin's resistance. Its dietary fiber also promotes intestinal motility and is beneficial for gut health.
Sweet potatoes are rich in dietary fiber, which can help with bowel movements in cats. They also contain vitamins A and C, which can boost a cat's immunity and improve its overall health.
Carrots are rich in trace elements and vitamins, which can enhance a cat's skin elasticity. The vitamin A they contain can also protect a cat's eyesight and nourish its coat for a beautiful shine.

While carrots are beneficial, they should only be used in moderation as a supplementary food. If you want to provide your cat with the nutrients found in carrots, you can choose a cat food that contains carrots, which will provide a good source of these nutrients in their daily diet.