I have been to websites that you plugged in the ingredients you have to use, and they gave you a recipe. You could pick 5 things in the cabinet, and make a dish.
Personally, I think your problem might be that you’re reading ‘trendy’ recipes. I remember when pine nuts hit the stage, and IF you could find them they were $10 for ¼ cup. No more.
Just keep in mind that humans have been cooking for thousands of years, and there are few palatable permutations of existing recipes. If you can’t find the ingredients, you need to back up a step and see what last years “Black Bean Soup with fresh figs and wild morel mushrooms” looked like. Search the base, add your personal favs!