Mary Frann's Shrimp In Mayonnaise

• 6 english muffins
• 2 garlic (cloves)
• 1 bibb lettuce leaves
• 375 gr shrimp
• 180 ml mayonnaise
• 140 gr julienne green pepper
• 65 gr pepper (chopped red)
• 34 gr capers
• 2 gr tarragon (dried)
• 1 gr lemon peel (grated)