Could you suggest a suitable recipe for the dietary needs of seniors?

It is entirely dependent on what you need to eat. The majority of people, including diabetics, should avoid carbohydrates. Sugary beverages and caffeinated drinks are just terrible for you. Neither is a high-protein diet. If you had mentioned the dietary restrictions, I could answer you better. One of my grandfathers had hyperlipidemia. Although he wasn’t physically fat, he avoided consuming high cholesterol foods on his doctor’s order.
As I clearly remember, he only ate roasted zucchini with yogurt, roasted chicken breast, and sometimes roasted trout fish for dinner. Since my grandmother passed away many years ago, he had to prepare his meals. The recipe was straightforward. Just grab a pan, pour very little oil, and roast it. Unless the food wasn’t greasy, it was OK for him. Again, the dietary restrictions provided by a doctor are crucial to answering this question correctly.