Prep the ingredients per the instructions above.
Stir together cream cheese, cucumbers, red onion, dill, mint, lemon juice, vinegar, salt, and pepper in a medium bowl until well combined.
Toast the bread.
Mix together all the ingredients for the fresca. Add more sugar to taste for a hint of sweetness. Serve over ice if desired.
Spread the cucumber mixture onto each slice of the bread. Top each with 2 to 3 tomato slices, and drizzle each with olive oil. Sprinkle it with chives, salt, and pepper.
Serve the sandwiches with chips, pickle, and fresca.