Hello Georgeann and welcome to Chef Talk. My mom is in a similar situation (she's 85 and alone), and I've begun to have the sense of "drudgery" that comes with preparing ordinary evening meals, day after day- and I'm only 55! I think you'll gain some zest for cooking again though inspiration you gather here. I know it's improved my meal repertoire and made things more interesting! Andy's suggestions are but the start of your adventure.
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Welcome!
Mezzaluna