Kittencal's Scalloped Potato and Ground Beef Casserole

INGREDIENTS

• 1 1/2 lbs ground beef (or use bulk Italian sausage meat, can increase the ground beef slightly)
• 1 medium onion, chopped
• 1 small green bell pepper, seeded and chopped (optional)
• 4 garlic cloves, finely chopped (or to taste)
• 1/2 teaspoon dried chili pepper flakes (adjust to taste) (optional)
• 1 teaspoon seasoning salt (or to taste) or 1/2 teaspoon white salt (or to taste)
• 1/2 teaspoon fresh ground black pepper (or to taste)
• 5 -6 russet potatoes (peeled and sliced thinly, or use as many as desired)
• 2 cups shredded cheddar cheese (or to taste)
• 2 (10 3/4 ounce) cans condensed cream of chicken soup, undiluted (using any other flavor of soup will not be as good)
• 1 small onion, chopped (about 1/3 cup)
• 3/4 light cream
• 1/2 cup sour cream
• 1/4 cup grated parmesan cheese
• 1 teaspoon garlic powder
• 1/2 teaspoon seasoning salt
• fresh ground black pepper (to taste)