Brown beef in oil; drain. ... 20 minutes. Cook macaroni and drain. Pour 1/2 shells ... mix. Spread 1/2 sour cream over sauce. Top with slices of cheeses ending with remaining shells, sauce, ... cheese melts and browns.
Cook beef in a little ... soft. Meanwhile, cook macaroni shells according to directions. Drain ... Spread half of sour cream over the sauce. Top with the Provolone cheese. Repeat the layers ending ... or 4 quart casserole.
Cook ground beef in a ... soft. Meanwhile, cook macaroni shells according to package directions. ... Spread half the sour cream over sauce. Top with slices of Provolone cheese. Repeat, ending with slices ... melts and browns slightly.