Impossible Broccoli and Cauliflower Pie

1 pound broccoli and cauliflower mix
9 slices bacon
1/2 cup chopped onion
1 (4 ounce) can mushrooms, stems and pieces, drained
1 cup shredded Cheddar cheese
1 1/2 cups milk
3 eggs
3/4 cup Bisquick
1/4 teaspoon pepper
1 teaspoon salt

Lightly grease a 10-inch pie plate.

Fry bacon; drain, then crumble when cool.

Cook broccoli and cauliflower until tender; drain.

Mix remaining ingredients. Blend until smooth before adding bacon and vegetables. Bake until golden brown, 30 to 35 minutes at 375 degrees F.