Melt butter in large skillet over medium-high heat until hot. Add carrots; cook and stir 3 minutes. Add mushrooms and onions; cook and stir 2 minutes more. Combine rice, pecans, parsley and vegetables in large bowl. Combine cheese, milk, eggs, Worcestershire, salt and pepper in small bowl; stir into rice mixture. Divide mixture evenly into 6 ovenproof molds, custard cups or large muffin tins coated with cooking spray. Bake at 350°F 25 to 30 minutes or until set. Serve with chicken.
Variation
Mixture may be baked in greased 3-quart baking dish and cut into squares.