Vegetarian Casserole

Ingredients

• 3 large potatoes
• 1/2 c. yogurt
• 1/2 c. fresh chives, minced
• 1/2 c. fresh parsley, minced
• 1 1/2 Tbsp. butter
• 1 large onion
• 1 clove garlic, minced
• 4 large carrots, chopped
• 2 stalks sliced celery
• 1 lb. mushrooms
• 2 large zucchinis
• 1 green bell pepper
• 1/4 tsp. thyme
• 1/2 tsp. basil
• 1/2 tsp. oregano
• 1 c. frozen peas
• 3/4 c. tomatoes
• 3/4 c. grated Cheddar cheese
• 1 Tbsp. cider vinegar
• 1/4 tsp. paprika
• 1/4 tsp. pepper
• 1 c. spinach (optional)
• 1 c. broccoli (optional)