Brown beef; drain. Mix tomato paste and taco seasoning according to package directions. Add ... Spoon 1/2 the meat mixture on top of tortillas ... sour cream and guacamole.
Spread 1/4 cup taco sauce ... baking dish. Crumble meat into a microwave safe colander ... bowl. Stir in seasoning mix and water. Microwave on ... casserole and avocado chunks.