ETA: Thanks to
Panel 1: We start off our look at Pattersnarfing as Annie compliments Elly because she has such a beautiful kitchen. Said kitchen has a microwave and conventional over, a mixer and other standard appliances.
Panel 2: Her silhouette says that with all this stuff, she could make a different gourmet meal every night.
Panel 3: As she sits down to drink her coffee and talk smack about Connie, Annie asks her which appliance she figures she uses the most.
Panel 4: She's taken aback as Elly says "the can opener."
Summary: Annie is Lynn's mouthpiece for her odd hatred of everyday foodstuffs; it's sort of obvious that she feels inferior because she can't turn her home into a four-star restaurant and thus conflates the unspectacular-but-still-delicious food we eat every day with garbage like Cheapie Weenie Casserole.