Preheat oven to 450 degrees. Place 2 TBSP butter in a small bowl and bring to room temperature. Wash and dry all produce.
Pat chicken* dry with paper towels. Place on one side of a baking sheet; top with a large drizzle of olive oil and season all over with half the Italian Seasoning, salt, and pepper.
Cut broccoli florets into bite-size pieces, if necessary. Halve lemon. Toss broccoli and lemon halves on opposite side of sheet from chicken with a drizzle of olive oil, salt, and pepper. Arrange lemon halves cut sides down.
4 SERVINGS: Use 4 TBSP butter. Spread chicken out across entire sheet and use all the Italian Seasoning. Toss broccoli and lemons on a separate sheet.