the best we've ever had.
Preheat oven to 350. Lightly grease 9 x 13″ pan.
Brown beef & onion over medium heat; drain.
Add garlic & tomato paste. Stir & cook 1 min. Stir in chili powder, cumin, cayenne, oregano, salt & pepper.
Add tomatoes & tomato sauce. Stir well & add black beans & corn. Heat through (5 mins).
Remove from heat. Spread 1/2 cup sauce in bottom of pan. Layer 3 -4 noodles over sauce. Spread 1/3 cup of sauce over noodles.
Dollop 1/3 sour cream & 1/3 cream cheese (pinch chunks & toss on top) across sauce. Sprinkle with 1/3 cheese. Repeat layers x2.
Cover with foil & bake 35 mins. Uncover & bake 10 – 15 mins more, until bubbly. Let stand 10 mins.