Lemon Oreo Jello Mousse Cake

Ingredients (8)

• 8 ounces cream cheese, at room temperature
• 3 ounce box lemon Jello
• 1 cup hot water
• 8 ounces Cool Whip, thawed
• Zest of 1 lemon
• 1/2 cup milk
• 2 containers lemon Oreos (see note)
• 16 graham crackers (see note)