These make lovely finger foods. Go with the smaller, inner bibb lettuce leaves.
Combine orange juice, vinegar, honey, garlic, crushed red pepper, and salt in a small saucepan; bring to a simmer over medium-high heat. Reduce heat to medium-low and cook until slightly thickened and reduced to about 1/2 cup, about 4 minutes. Combine chicken and 1/4 cup of the orange juice mixture in a medium bowl; toss to coat.
Divide chicken mixture among lettuce leaves. Top evenly with radish, cucumber, and peanuts. Drizzle with remaining 1/4 cup orange juice mixture and serve with lime wedges.
