Chipotle Beef Tacos with Tomato-Avocado Pico de Gallo

Prepare Tomato-Avocado Pico de Gallo: In a medium bowl gently stir together tomatoes, avocado, snipped cilantro and, if desired, crushed red pepper. Set aside.

Prepare Chipotle Beef Tacos: Coat a 12-inch nonstick skillet with cooking spray; heat over medium. Add onion and garlic; cook 5 minutes or just until onion is tender, stirring occasionally. Transfer onion mixture to a blender or food processor. Add the next eight ingredients (through salt). Cover and blend or process until smooth.

In skillet cook ground beef over medium-high until browned. Drain off fat. Add onion mixture to meat in skillet. Cook and stir over medium just until bubbly. Reduce heat. Simmer, covered, 5 minutes, stirring occasionally.

Serve meat mixture in warm tortillas topped with Tomato-Avocado Pico de Gallo.