Preheat oven to 375°F. In small microwave-safe bowl, combine Spinach & Herb Seasoning and water. Microwave on HIGH 30 seconds. Stir; set aside.
In large skillet over medium-high heat, sauté bacon 5-6 minutes. Add onions and continue sautéing until bacon is crispy and onions are tender, about 4-5 minutes. Remove bacon and onions from drippings. Set aside to cool slightly.
In large bowl, whisk together eggs, milk, pepper and reserved Spinach & Herb Seasoning; salt to taste. Whisk in bacon and onion mixture.
Generously grease a non-stick 9-inch pie pan with Avocado Oil. Add egg mixture and sprinkle with cheese. Bake 40-45 minutes or until knife inserted in center comes out clean. Let stand 5 minutes before serving.