10-inch skillet; 8- or 9-inch square pan
To make ahead, assemble the lasagna, but do not bake it. Cover with aluminum foil and refrigerate no longer than 24 hours. Bake as directed in step 6, increasing the first bake time to 40 minutes.
You can substitute ricotta cheese for the cottage cheese. Ricotta is drier in texture than cottage cheese. Look for it in the dairy case near the cottage cheese.
Spread 1/4 cup beef mixture in pan; top with noodles. Spread 1/2 cup beef mixture over noodles.
After beef mixture and noodles are layered, spread 1/2 cup cottage cheese over beef mixture. Sprinkle with 1/3 cup mozzarella cheese.