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© Royalty-Free/Masterfile
1 large baking potato
1 tsp butter
2 tbsp milk
125 g lean ground beef
1 tbsp ketchup
1/2 cup frozen corn or mixed vegetables
Pierce potato in several places and microwave, uncovered, on high until soft, about 5 minutes. Cut in half and scoop out potato. Using a fork, mash with butter and milk.
In a 9x5-in. (2-L) glass loaf dish, stir beef with ketchup. Microwave on high, uncovered, for 1 minute. Stir and break up any lumps, then continue microwaving for 1 more minute.
Finely chop corn or vegetables or leave whole. Stir into meat. Smooth into an even layer. Top with potatoes, covering meat evenly. Microwave, uncovered, for 2 minutes. If you like a golden potato top, slide casserole under a preheated broiler for 1 to 2 minutes. Watch to prevent browning. Cool to lukewarm before serving.
After stirring corn or mixed vegetables into beef mixture in above recipe, spoon mixture into scooped-out potato shells. Top with potatoes, covering meat evenly, and proceed with recipe, microwaving, uncovered, until hot, about 2 minute.