BEAT pudding mix and 1-3/4 qt. half-and-half (or 1-3/4 cups half-and-half for trial recipe) with whisk until well blended. Refrigerate until thickened.
MEANWHILE, unroll crusts; place in single layer in parchment paper-lined sheet pans. Flute edges; prick bottoms with fork. Bake in 375ºF-convection oven 7 to 8 min. or until golden brown. Cool completely in pans.
MIX Variegate and remaining half-and-half.
FOR each pizza: Spread 3/4 cup pudding onto 1 crust; top with about 22 banana slices. Drizzle with 3 Tbsp. Variegate mixture and 2 Tbsp. caramel topping; sprinkle with 1/2 cup chopped cookies and 2 Tbsp. nuts. Refrigerate until ready to serve.