Preheat oven to 450°F. Grease 12-inch pizza pan. In a medium bowl combine baking mix and hot water; stir 20 strokes until a soft dough forms. Cover and let stand while preparing gravy and eggs.

In a medium bowl whisk together eggs and 2 Tbsp. milk. In a large nonstick skillet melt butter over medium heat; pour in egg mixture. Let stand 20 seconds or until mixture begins to set on the bottom and around edges.

Lift and fold toward center with a spatula, allowing uncooked egg to flow underneath. Repeat until eggs are just set and still slightly wet. Season with salt and pepper. Remove from heat immediately and stir in chives.

Transfer scrambled eggs to a bowl and wipe skillet clean. Return skillet to medium-high heat and cook pork sausage and chopped onion until meat is brown and onion is tender, using a wooden spoon to break up meat as it cooks. Do not drain. Sprinkle all-purpose flour over meat mixture; stir. Cook and stir over medium heat for 1 minute. While whisking, gradually add remaining 3/4 cup milk. Cook and stir until thickened and bubbly. Cook and stir for 1 minute more. Season with salt and pepper.

Press dough in prepared pan to a 12-inch circle. Spread sausage gravy over dough. Top with scrambled eggs and cheese.

Bake 13 to 15 minutes or until crust is golden brown and cheese is bubbly.