Yes. On the meal recipe's edit page, under Ingredients / Sub-recipes, grab the drag handle (the dotted icon, tooltip "Drag to reorder") on the left of any ingredient or sub-recipe row and drag it up or down, then save the recipe. The order you leave them in is exactly the order they print in the Ingredients element on that meal's labels (and the order shown on the meal card/modal to customers) — there is no separate "sort by weight" toggle, so to match the standard heaviest-first ingredient-declaration convention you arrange them manually, heaviest ingredient at the top.