Zucchini Pizza Casserole | Reader's Digest Canada

Ingredients

• 4 cups shredded unpeeled zucchini
• 1/2 tsp salt
• 2 large eggs
• 1/2 cup grated Parmesan cheese
• 2 cups shredded part-skim mozzarella cheese (divided)
• 1 cup shredded Cheddar cheese (divided)
• 1 lb ground beef
• 1/2 cup chopped onion
• 1 can Italian tomato sauce ((15 oz))
• 1 medium green or sweet red pepper (chopped)