Cook beef pot roast according to package directions. Discard gravy or au jus, or reserve for another use. Cool slightly and finely shred pot roast with two forks. Combine shredded beef, pasta sauce and garlic in large bowl. Set aside.
Preheat oven to 400°F. Spread cream cheese on bottom of 9-inch pie plate or 8 X 8-inch baking dish. Top evenly with 1/2 cup green onions. Spread beef mixture evenly over onions. Sprinkle with Parmesan topping.
Bake in 400°F oven 15 to 20 minutes or until bubbly around edges. Let stand 5 minutes. Sprinkle with additional green onions, if desired. Serve with crackers, as desired.
Nutrition information per serving: 194 Calories; 90 kcal Calories from fat; 10 g Total Fat; 5 g Saturated Fat; 0 g Monounsaturated Fat; 50 mg Cholesterol; 711 mg Sodium; 11 g Total Carbohydrate; 1.3 g Dietary Fiber; 16 g Protein; 1.7 mg Iron; 0 mg Niacin; 0 mg Vitamin B6; 0 mcg Vitamin B12; 0 mg Zinc; 0.1 mcg Selenium; 0.1 mg Choline;