Summer Tuna Casserole

Ingredients

• 2 cans drained tuna
• 3 c. egg noodles, uncooked
• 1/2 c. chopped celery
• 1/3 c. sliced onions
• 1/2 to 2/3 c. sour cream
• 2 tsp. mustard
• 1/2 c. mayonnaise
• 1 small summer squash
• 1/2 tsp. thyme
• 1/2 tsp. salt
• 1 small zucchini, sliced
• 1 c. shredded Monterey Jack cheese
• 1 medium tomato, diced
• 1 tsp. parsley