COOK and stir chicken in large nonstick skillet on medium heat 8 to 10 min. or until done. Add water, Seasoning Mix and Pasta. Bring to boil. Reduce heat to medium-low; cover.
SIMMER 8 min., stirring frequently. Add Broccoli; simmer, covered, 2 to 4 min. or until pasta is tender and most of the water is absorbed. Remove from heat.
STIR in VELVEETA Cheese Sauce. Top with cracker crumbs.