Prepare tortellini according to package directions.
Meanwhile, sprinkle chicken with salt and pepper. Place pecans in a shallow bowl. Place egg in a second bowl. Dip chicken in egg mixture, allowing excess to drip off. Dredge chicken in pecans, pressing firmly to adhere.
Cook chicken in hot oil in a large nonstick skillet over medium-high heat 2 minutes on each side or until done. Remove from skillet; wipe skillet clean.
Melt butter in skillet over medium heat. Add garlic, and sauté 5 to 7 minutes or until garlic is caramel-colored and butter begins to turn golden brown. Immediately remove from heat, and stir in basil, parsley, and hot cooked tortellini. Sprinkle with cheese. Serve immediately with chicken.