1For filling: In a medium bowl, beat cream cheese with an electric mixer on medium to high speed for 30 seconds. Add goat cheese, milk, garlic, and black pepper; beat until smooth. Stir in red peppers and basil.
2To assemble roll-ups, divide filling among tortillas and spread to within 1/2 inch of edges. Arrange spinach leaves over filling to cover. Carefully roll up tortillas tightly. Cover and chill roll-ups for 2 to 24 hours.
3To tote, place roll-ups in an insulated container with ice packs. To serve, use a sharp knife to cut each roll-up crosswise into six pieces (48 pieces total).