St. Patrick's Chocolate & Mint Cheesecake Bars

INGREDIENTS

• 1 (18.25 ounce) package chocolate fudge cake mix with pudding (such as Betty Crocker® Triple Chocolate Fudge cake mix)
• 1/2 cup butter, softened
• 3 (8 ounce) packages cream cheese, softened
• 1 (16 ounce) container cream cheese flavored frosting (such as Betty Crocker® Rich and Creamy)
• 3 eggs
• 6 drops green food coloring, or as needed
• 3 drops creme de menthe candy flavoring (such as Wilton®), or as needed
• 1 (10 ounce) package dark chocolate and mint chips (such as Nestle® Toll House® Dark Chocolate and Mint Morsels)