Ingredients [ ]
Directions [ ]
Coat 8-inch square baking dish with cooking spray ; set aside.
Preheat broiler.
Bring medium saucepan of lightly salted water to a boil.
Add macaroni ; stir to prevent sticking.
Cook until just tender, about 6 minutes.
Drain well and set aside.
Meanwhile, in food processor or blender, whirl bread to coarse crumbs.
Transfer to small bowl.
Stir in cilantro , salt and mustard and set aside.
In large saucepan, melt butter over medium heat.
Add onion , chipotle and scallion and cook, stirring often, until onion is tender, about 4 minutes.
Stir in flour .
Cook, stirring, until mixture is fragrant, 1 to 2 minutes.
Stir in ¼ cup soy milk until no lumps remain.
Stir in another ½ cup milk until smooth, then remaining ¾ cup milk .
Increase heat to medium-high and cook, stirring, until mixture boils gently and thickens enough to leave a track on bottom of pot behind spoon, about 2 minutes.
Stir in "cheese " just until melted.
Stir in macaroni until coated.
Transfer macaroni mixture to prepared baking dish and sprinkle with reserved crumbs.
Broil just until top is browned, about 1½ minutes, watching carefully to prevent burning.
Serve hot.