Preheat oven to 425°.
To prepare pork, heat oil in a large ovenproof skillet over medium-high heat. Rub pork with 2 teaspoons Easy Jerk Seasoning. Add pork to pan; cook 3 minutes, turning to brown all sides. Place pan in oven; bake at 425° for 25 minutes or until a thermometer registers 160° (slightly pink). Let stand for 10 minutes before slicing.
To prepare chutney, heat a medium saucepan over medium-high heat. Coat pan with cooking spray. Add onion; cook 5 minutes or until lightly browned. Add pineapple and remaining ingredients. Cover, reduce heat, and simmer 15 minutes or until thickened, stirring occasionally. Serve over the pork.