An unexpected delicious combination of Italian and Mexican flavors...in a pie!
Heat oven to 350°F. Cook pasta according to package directions; drain well. In large bowl, whisk together remaining Pasta Shell ingredients. Add pasta; toss to coat. Arrange pasta in 9-inch pie dish, pressing down and up side to form shell; set aside.
Meanwhile, heat large nonstick skillet over medium heat until hot. Add Ground Beef; cook 8 to 10 minutes, breaking up into 3/4-inch crumbles and stirring occasionally. Stir in chili powder, 1 teaspoon garlic powder, 1/2 teaspoon salt and cumin. Stir in tomatoes and zucchini. Gently simmer 3 to 5 minutes or until liquid is almost evaporated, stirring occasionally.
Stir sour cream into remaining beef; spoon into pasta shell. Place 1 cup cheese in center, leaving 2-inch border around edge. Bake in 350° oven 15 minutes or until heated through.
To serve, cut into wedges.