Pumpkin Seed Chicken Mole

Name: Pumpkin Seed Chicken Mole
Ingredients: 1/2 cup raw pumpkin seeds or pepitas; 1 teaspoon cumin seeds; 1/2 teaspoon cracked black pepper; 1/2 teaspoon dried Mexican oregano; 10 tomatillos, husked, washed and quartered; 1 serrano chile; 2 garlic cloves, peeled; 2 romaine lettuce leaves; 1/8 teaspoon ground cinnamon; 1 bunch cilantro, stems and leaves; 2 radish tops; 1 small onion, quartered; 1 1/2 teaspoons salt; 2 tablespoons olive oil; 2 cups chicken stock; 3 large skinless, boneless chicken breasts, split; 1 bunch radishes, thinly sliced, for garnish