Zucchini Quiche

Ingredients

• 4 c. thinly-sliced unpeeled zucchini
• 1 c. coarsely chopped onion
• 1/3 to 1/2 c. butter (as desired)
• 1/2 c. chopped fresh parsley
• 1/2 tsp. salt
• 1/2 tsp. black pepper
• 1/4 tsp. garlic powder
• 1/4 tsp. crushed dried basil
• 1/4 tsp. crushed dried oregano
• 2 eggs, well beaten
• 8 oz. shredded mozzarella cheese
• 1 (8 oz.) can refrigerated crescent rolls
• 2 tsp. prepared mustard