Preheat broiler to high.

Halve bell pepper lengthwise; discard seds and membrane. Place halves, skin side up, on a baking sheet. Broil 12 minutes or until blackened. Seal in a paper bag. Let stand 5 minutes. Peel; chop. Combine bell pepper and next 6 ingredients (through beans). Combine rind, juice, garlic, oil, 1/8 tsp salt and 1/8 tsp pepper.

Heat a large skillet over medium high heat. Coat pan with cooking spray. Sprinkle shrimp with remaining salt and pepper. Cook 2 minutes on each side until done. Add shrimp, lemon mixture and nuts to arugula mixture; toss.