Ingredients

7 Tablespoon butter, divided
1/2 Pound yellow onions, thinly sliced
2 Pound zucchini, sliced 1/2-inch thick
2 Teaspoon salt
1 Teaspoon black pepper
1/4 Teaspoon nutmeg
2 Tablespoon flour
1 Cup hot milk
3/4 Cup fresh bread crumbs
3/4 Cup grated Gruyere cheese

Instructions

Melt 6 tablespoons butter in large pan and cook onions over low heat for 20 minutes or until tender, but not browned. Add zucchini and cook covered for 10 minutes until tender. Add salt, pepper, nutmeg and flour and cook uncovered for just a few minutes. Add milk and cook 5 more minutes until sauce forms. Pour mixture into an 8 by 10-inch baking dish. Combine bread crumbs and cheese and sprinkle on top of zucchini mixture. Dot with remaining 1 tablespoon butter cut into small bites and bake at 400 degrees for 20 minutes, or until bubbly and browned.