01 -
Preheat the oven to 200°C. Lightly coat a 25x38 cm sheet pan with nonstick spray and set aside.
02 -
In a medium bowl, mix melted butter, olive oil, minced garlic, and Italian dressing mix powder until well blended.
03 -
Arrange green beans and red potato pieces in a single layer on the prepared sheet pan. Drizzle with two-thirds of the sauce and toss vegetables thoroughly to coat. Reserve the remaining sauce mixture.
04 -
Shift vegetables to create space. Season chicken breasts evenly on both sides with paprika, garlic powder, onion powder, and black pepper, then place on the sheet pan.
05 -
Add parmesan cheese and mayonnaise to the reserved butter sauce and whisk until smooth.
06 -
Pour the parmesan sauce over each seasoned chicken breast, ensuring even coverage.
07 -
Bake for 20–30 minutes, turning the vegetables every 10 minutes, until the chicken reaches an internal temperature of 74°C and potatoes are fork-tender.
08 -
Plate chicken, potatoes, and green beans. Spoon remaining pan sauce over all components and serve immediately.