Heat oven to 375ºF.
Coat chicken with cheese mixture and bake as directed on package.
Meanwhile, heat dressing in large skillet on medium-high heat.
Add peppers; cook and stir 3 to 4 min. or until crisp-tender.
Add spinach and beans; cook 3 min. or just until spinach is wilted, stirring constantly.
Serve chicken over the spinach salad.
