Prepare brown or white rice to package directions. When rice is done, fluff with fork and combine with watercress leaves.
When rice has been cooking 5 minutes, preheat broiler and heat a skillet over medium-high heat with EVOO, a turn of the pan. Add carrots to the pan and season with salt and pepper. Sauté to tender-crisp, 6-7 minutes.
Meanwhile, in a small pot, bring the liquid smoke, maple syrup and vinegar to a boil and reduce over high heat, stirring constantly for 2 minutes. Remove from heat.