Scrambled Egg Muffins

12 eggs
1/2 tspn seasoned salt
2-3 TBSP onion, diced
1 cup cooked ham, diced OR cooked bacon, diced OR cooked sausage
1/4 teaspoon garlic powder
1/4 cup red  bell pepper, diced
1/4 cup fresh mushrooms, diced (sauteed first)
1 cup shredded cheddar cheese
1/2 cup baby spinach,finely shredded
pepper to taste

1-Preheat oven to 350 degrees.
2-Spray a 12-cup muffin pan with non-stick cooking spray
3-In a large mixing bowl, beat eggs. Add in remaining ingredients and mix together.
4-Scoop 1/3 cup of mixture into each muffin tin. Bake for 20-25 minutes or until the center of the muffin is completely cooked.