Preheat the oven to 400°F (200°C). Grease a baking sheet or pizza pan.
Roll out the pizza dough and press it into the prepared pan. Bake for 5–7 minutes.
Cook the breakfast sausage in a skillet until browned and fully cooked. Drain excess grease.
Cook the bacon until crispy, then crumble it into small pieces.
Whisk the eggs, milk, salt, and black pepper. Scramble gently in a skillet until just set.
Spread the scrambled eggs over the partially baked crust.
Add the sausage, bacon, cheddar cheese, mozzarella cheese, and diced bell peppers.
Bake for 10–15 minutes, until the crust is golden and the cheese is melted.
Let rest for a few minutes, then slice and serve warm.