Step 1

Heat oven to 350°F. Cook and drain pasta shells as directed on box.

Step 2

Meanwhile, in 12-inch nonstick skillet, cook beef over medium-high heat 5 minutes, stirring frequently, until thoroughly cooked; drain. Add taco seasoning mix, crushed tomatoes and 1 cup of the shredded cheese; stir well until cheese is melted.

Step 3

Fill each pasta shell with about 1 tablespoon beef mixture; place in ungreased 13x9-inch (3-quart) glass baking dish. Top filled shells with plum tomatoes and chopped cilantro; sprinkle with remaining 1 cup cheese.

Step 4

Bake 15 to 20 minutes or until heated through and cheese is melted. Serve warm.