White Bean Chowder

Ingredients

• 1 lb. white beans (small whites, navies,
• great northern)
• 1-1/2 tsp. salt
• 1 cup chopped onion
• 1-1/2 cup chopped celery
• 1 to 2 cup sliced mushrooms
• Garlic, to taste
• 1/4 cup butter
• 3 tbsp. cornstarch
• arrowroot
• 1/8 tsp. pepper
• 3 cups milk (or more)
• 1 can (1 lb.) frozen whole kernel corn
• 1 can (1 lb.) frozen green beans
• 1 can (14) chopped tomatoes
• 1/4 lb. sharp cheddar (or more)
• Water