01 - Heat vegetable oil in a large non-stick skillet over medium-high heat. Add thawed hash browns and season with salt and pepper. Cook for 12–15 minutes, flipping occasionally, until golden brown and crispy. Divide evenly among four serving bowls.
02 - In the same skillet, add breakfast sausage and break apart with a spatula. Cook for 5–7 minutes until thoroughly browned and cooked through. Drain excess fat if needed. Spoon sausage over the hash browns in each bowl.
03 - Whisk together eggs, milk, and salt in a bowl until combined. Heat butter in a clean non-stick skillet over medium heat. Pour in egg mixture and cook, gently stirring with a spatula, until just set and fluffy, about 3–4 minutes. Distribute scrambled eggs evenly among the bowls.
04 - Top each bowl with shredded cheddar cheese, diced tomatoes, sliced green onions, and avocado slices. Add hot sauce if desired and serve immediately while hot.