Cheesy Chicken Toast Sandwich

Ingredients (4)

• + 1 (24 ounce) jar four-cheese pasta sauce (such as Classico®) add to pantry
• ✓ 4 skinless, boneless chicken breast halves
• + 2 cups fiesta-style four-cheese blend add to pantry
• + 8 slices Texas-style cheese toast add to pantry