Slow Cooker Ratatouille with Polenta - Slender Kitchen

Ingredients

• 2 tbsp olive oil
• 4 cups eggplant, cubed
• 2 zucchini, cubed
• 1 summer squash, chopped
• 2 bell peppers, chopped
• 1 cup red onion, sliced
• 1 1/2 cups mushrooms
• 4 garlic cloves, minced
• 1 tbsp Italian seasoning
• 28 oz can fire roasted diced tomatoes
• Salt and pepper
• 2 tbsp balsamic vinegar
• 18 oz. prepared polenta tube