Beat eggs and water in pie plate until well blended.
Add 12 crackers; let stand 4 min., turning after 2 min. Press 1 soaked cracker onto bottom and up side of each of 12 mini muffin cups sprayed with cooking spray. Repeat with remaining 12 crackers in additional muffin cups.
Bake 8 to 10 min. or until lightly browned. Carefully remove cups from pan with metal spatula; place on baking sheet sprayed with cooking spray.
Bake 30 to 35 min. or until crisp. Cool completely.
Mix Neufchatel, zest, juice and milk. Cook and stir shrimp and garlic in nonstick skillet sprayed with cooking spray on medium-high heat 3 to 4 min. or until shrimp turn pink.
Fill cracker cups with Neufchatel mixture; top with shrimp.