For the rice, melt butter over medium heat in a pot. Add shallots and stir 2 minutes then add orzo and toast to golden. Add rice and 2 cups stock, bring to boil then reduce heat to simmer. Cover and cook to tender, 16-18 minutes, adding a little more stock if rice begins to stick and is not yet tender. If using fresh peas, add them in halfway through cooking time; if using defrosted frozen peas, add them in when rice the last 2-3 minutes. Fluff rice with fork and stir in mint and parsley.
Season chops or chicken well with salt and pepper. Heat oil in a large, nonstick skillet over medium-high heat. Add chicken or chops to pan and cook 6 minutes on each side. Add stock to pan to deglaze, turn meat to coat on both sides, turn off heat, cover with loose foil and let rest 5 minutes.
For the spinach, heat a drizzle of oil over medium heat in a large sauté pan. Wilt in spinach in large handfuls, season with salt, pepper, nutmeg to taste and douse with lemon juice.
Serve chops or chicken with Blubarb Sauce on top, rice and peas and wilted spinach alongside.