Minty Pea Pesto with Rice and Radishes

INGREDIENTS

• 1 1/2 cups arborio/short grain brown rice (or any other variety of brown rice)
• 2 cups fresh peas (from approximately 1 1/2 pounds peas in pods) or a 10-ounce package frozen peas
• 2 small garlic cloves, coarsely chopped
• 1/3 cup raw cashews
• 1/3 cup grated Parmesan
• 2 packed tablespoons mint leaves (more to taste)
• 1/2 lemon, juiced (more to taste)
• 1/2 teaspoon sea salt
• 1/3 cup olive oil
• 1/2 cup reserved rice or pasta cooking water (or plain water if necessary)
• 6 radishes, end removed and sliced into super thin rounds