Beat eggs; add cottage cheese and 1 cup Mexican cheese, blend well; set aside. In a 10-inch, non-stick, oven-proof skillet over medium-high heat, melt butter. Add onion and garlic; sauté until onion is tender, about 5-7 minutes. Add green chilies and stir to mix. Pour egg mixture over vegetables in skillet; cook for 2-3 minutes or until mixture looks set around the rim. Keeping mixture in skillet, bake in 350ºF oven until knife inserted in center of dish comes out clean or about 20-25 minutes. Sprinkle with remaining cup of cheese and place under broiler for about 1 minute to brown and melt cheese (watch carefully). Cut into wedges and serve with reduced-fat sour cream and salsa and garnish with sprigs of cilantro, if desired. Hint: To make the skillet oven-proof, wrap the handle with aluminum foil.