Toasted Orzo & Lentil Salad

Ingredients

• 2 cups (500 mL) orzo
• 3/4 cup (175 mL) diced onion
• 1 garlic clove, minced
• 4 cups (1 L) low-sodium chicken stock
• 1 1/2 cups (375 mL) halved and sliced zucchini
• 6 Tbsp (90 mL) olive oil, divided
• 1/2 cup (125 mL) butter
• to taste red pepper flakes
• 3 cups (750 mL) cooked split red lentils
• 1 1/4 cups (310 mL) baby arugula
• 1/4 cup (60 mL) lemon juice
• to taste salt and pepper