Modifiers matching filling:

• flammable,
• exotic,
• sweet,
• sweetened,
• natural,
• edible,
• silver,
• nonmagnetic,
• juicy,
• unusual,
• new,
• metal,
• refractory,
• luxurious,
• good,
• premium,
• hearty,
• loose,
• imaginative,
• granular,
• colored,
• prepared,
• softer,
• dental,
• nutritious,
• interesting,
• wholesome,
• conventional,
• traditional,
• refrigerated,
• rich,

Simple categories matching hearty:

• green,
• food,
• veg,
• filling,
• dish,
• ingredient,
• soup,
• seed,
• pasta,
• seafood,
• meal,
• meat,
• fish,
• fare,
• vegetable,
• lettuce,
• sandwich,
• plant,
• sausage,
• grain,