Preheat oven to 325°. Mix salt, paprika and pepper; sprinkle over ribs. Refrigerate, covered, while preparing sauce.
In a large saucepan, combine rhubarb and strawberries; add water to cover. Bring to a boil. Cook, uncovered, 8-10 minutes or until rhubarb is tender. Drain; return to pan. Mash until blended.
In an ovenproof Dutch oven, heat 1 tablespoon oil over medium heat. Brown ribs in batches, adding additional oil as needed. Remove from pan.
Add onion to same pan; cook and stir 4-6 minutes or until tender. Add remaining ingredients; stir in rhubarb mixture. Return ribs to pan, turning to coat. Bring to a boil. Cover and bake 2 hours or until ribs are tender. Bake, uncovered, 30-35 minutes or until sauce is slightly thickened.
Nutritional Facts: 4 ounces cooked pork with 1/3 cup sauce equals 533 calories, 19 g fat (6 g saturated fat), 98 mg cholesterol, 1158 mg sodium, 52 g carbohydrate, 2 g fiber, 31 g protein.