Preheat oven to 375F and grease 9x9 baking dish. Layer bottom with frozen tater tots.
In a large saute pan, heat olive oil over medium-high heat. Once hot, add onion and peppers and cook for 3 minutes.
Add in turkey sausage and cook until no longer pink, breaking up along the way. Turn off heat once fully cooked and pour over top of frozen tater tots.
In a bowl, whisk together eggs, cottage cheese, salt, pepper, onion powder, and garlic powder. Pour over top of tater tot mixture, spreading to make as even as possible.
Top with shredded cheddar cheese and bake for 40-45 minutes or until no longer jiggly. If cheese is getting too brown, cover with foil halfway through.
Let rest at least 15 minutes before serving, top with green onion if desired.