In large skillet over medium-high heat, brown ground beef and onion; drain. Remove from skillet; set aside.

In same skillet over medium heat, sauté rice-vermicelli mix with margarine until vermicelli is golden brown.

Slowly stir in 2 ½ cups water and Special Seasonings; bring to a boil. Reduce heat to low. Cover; simmer 10 minutes.

Stir in meat mixture, salsa and chili powder; bring back to a simmer. Cover; simmer 5 to 10 minutes or until rice is tender.

Arrange lettuce on serving platter. Top with rice mixture, tomato, cheese and tortilla chips.