Place pork, soy sauce, honey, and whole (peeled) garlic cloves in a crockpot. Cook on low for 4 -4.5 hours or until meat is no longer pink; flip tenderloin over halfway through cooking.
Approximately 30 minutes before pork is finished, start cooking rice as directed on the package. Preheat oven to 425°F.
Remove pork; shred or cut into small pieces, then return to the slow cooker. Cut zucchini and carrots into thick sticks.
Drizzle oil onto a baking sheet and line up the veggies; sprinkle with salt, pepper, and Italian seasoning, then roast for 20 minutes.
Serve pork over rice with veggies and mango on the side.