If you don't have (or want to use) parsnips, feel free to substitute turnips or carrots. A great way to ensure tender and moist chops is to soak them in a brine of 1 cup milk to 1/2 Tbs salt for at least 1 hour before using in a recipe.
Preheat the oven to 425 degrees F. Wash, peel, and slice the parsnips into 1 inch thick peices (same for carrots, but if using turnips, cut in half, then slice into 1/2 inch thick slices). Scrub and slice the potatoes into 1/2-inch thick slices.
Place into a large bowl and coat lightly with olive oil. Add 1/2 of the thyme (2 Tbsp), garlic cloves, salt and pepper. Pour into a baking dish and bake in the oven for 10-15 minutes.
While the vegetables are in the oven, mix the remaining thyme, softened butter, and seasoning. Rub onto the chops. Quarter pears and scoop out the seed center.
Place the chops and pears in the tray with the parsnips and potatoes. Cook about 30 minutes until the meat is tender and the vegetables are golden.