Warm Marinated Mushroom & Lentil Salad with Feta

Ingredients

• 1 Tbsp (15 mL) canola oil
• 4 cups (1 L) sliced button mushrooms (or your favourite mushroom)
• 1⁄4 cup (60 mL) balsamic vinegar
• 1 cup (250 mL) cooked lentils, or canned lentils, drained and rinsed
• 1 Tbsp (15 mL) thinly sliced chives
• 4 cups (1 L) baby spinach
• 1⁄4 cup (60 mL) crumbled feta cheese
• salt
• black pepper