Clean out the inside of the chicken by removing any extra parts or packaging and discard.
Add the carrots, onion and celery to the bottom of the slow cooker. Add the chicken.
Pour over the melted butter and sprinkle over the thyme, oregano, paprika, salt and pepper.
Cover and cook on low for 7-8 hours or HIGH for 5-6 hours.
Remove chicken to a platter and cover with foil. Now you'll want to remove some of the liquid from the slow cooker, leave only 2 cups of liquid along with the veggies. Add the minute rice to the veggies and 2 cups of liquid that is in the slow cooker. I add the chicken back to the slow cooker with the rice for a pretty presentation. If I was just serving this to my family, I would slice and serve the chicken on the platter and serve the rice from the slow cooker. Replace the lid.
Replace the lid. Cook on HIGH For 40 more minutes to allow the rice to cook. Serve and enjoy.
Notes
Put any remaining chicken, rice, and veggies in an airtight container and store in the fridge for up to 4 days. Reheat leftovers in the oven covered with foil or on the stovetop in a dutch oven or oven safe pot over medium heat. You may have to a half cup of hot water or broth.
Tempted to use regular grain rice (not instant)? Standard rice that is not instant does not cook well in the slow cooker. It tends to get chalky and mushy since the slow cooker doesn't get hot enough to cook it properly.