Mushy peas are, of course, delicious. I suspect you haven’t ever tried this wonderful European dhal. It’s merely dried marrowfat peas (an ancient and venerable large-seeded variety) soaked and simmered to softness. Not a gobbet of grease involved. And the grey-green is entirely natural. If it’s luminous green you know food-colouring has been added. Think of it as a variant on lentil soup :-)