Easy Chicken Pot Pie Potato Skins



8 medium russet potatoes
2 tablespoons vegetable oil
1 medium onion, finely diced
1 cup thinly sliced carrots
1 lb chicken breasts, cut into 1/2-in cubes
4 cloves garlic, minced
1/4 cup white whole wheat flour
1 cup milk
1/4 cup heavy whipping cream
1/2 cup frozen peas, thawed
Salt and pepper to taste
2 tablespoons minced fresh parsley
1 cup shredded cheddar cheese