Preheat your oven to 425°F (220°C).
In a skillet over medium heat, add the breakfast sausage. Cook until browned, breaking it up into small pieces, about 5-7 minutes. Drain excess grease if necessary and set aside.
In a mixing bowl, whisk together the eggs, milk, and a pinch of salt and pepper until well combined.
In the same skillet, scramble the egg mixture over medium heat until just set, about 3-5 minutes. Remove from heat.
Roll out the pizza crust on a floured surface if necessary. Place it on a greased baking sheet or pizza stone.
Spread the scrambled eggs over the pizza crust evenly. Layer the cooked sausage, chopped bell peppers, and onions on top.
Sprinkle the shredded cheddar cheese evenly over the toppings.
Bake in the preheated oven for 15-20 minutes, or until the cheese is bubbly and the crust is golden.
Remove from the oven and let cool slightly before slicing.
Feel free to add other toppings like cooked bacon, spinach, or diced tomatoes based on your taste preferences.