1Heat oven to 425°F. Spray 12-inch pizza pan with cooking spray. In medium bowl, stir Bisquick mix and hot water until soft dough forms. Press dough in bottom and up side of pan, using fingers dipped in Bisquick mix, forming rim at edge.
2Bake 10 to 15 minutes or until golden brown.
3Meanwhile, in large bowl, beat eggs, milk and pepper with wire whisk or fork until blended. Stir in pepperoni and onions. In 12-inch nonstick skillet, melt butter over medium heat. Add egg mixture; cook 3 to 5 minutes, stirring occasionally, until firm but still moist.
4Spread pizza sauce over baked crust. Top evenly with egg mixture. Sprinkle with cheese. Bake 3 to 5 minutes longer or until cheese is melted and pizza is hot. Sprinkle with basil.