It’s important to consume iron rich foods in combination with foods rich in vitamin C for absorption.
Iron rich foods ;

legumes (lentils, chickpeas and dried or canned beans)
tofu and tempeh.
wholegrains, particularly quinoa, buckwheat and amaranth.
dark green leafy vegetables.
nuts and seeds.
dried fruit, particularly dried apricots, dates and prunes.
eggs (for lacto-ovo vegetarians)

U can make a bread using spinach cheese and carrots grate them and put in ur dough and u can bake it

Use spinach in her salad or on bakes pizzas beatroot juice is very good use it with other juices and its not good tatste itself

Iron deficiency is very common. Those who are most at risk include children, adolescents, women of reproductive age, pregnant women, vegetarians and vegans.
Foods That Help You Absorb More Iron: While not all dietary iron is absorbed equally, some foods can enhance your body’s ability to absorb it.
Foods Rich in Vitamin C
Vitamin C has been shown to enhance iron absorption. It captures non-heme iron and stores it in a form that’s more easily absorbed by your body (3).
Foods high in vitamin C include citrus fruits, dark green leafy vegetables, bell peppers, melons and strawberries.
In one study, taking 100 mg of vitamin C with a meal increased iron absorption by 67% .
Hence, drinking citrus juice or eating other foods rich in vitamin C while you’re eating high-iron foods can increase your body’s absorption.
In vegetarian and vegan diets, iron absorption may be optimized by including vitamin C-containing vegetables during meals (1).

Supplements are good! Really interesting reading the comments to this!

buy her a supplement, they are relatively cheap and can be bought in the kids range

Spinach and broccoli have very high iron content. Will she eat red meat as mince? Like in bolognese?

Perhaps try to find an iron fortified food that she likes, also drinking orange juice with a meal will help absorb it more!

baby cereal has iron… giev that a go?

there are tablet that you can get maybe go see a doctor

there are some good comments here

That’s a hard one with little kids!

I have problems maintaining my iron levels due to a dislike of the texture of red meat. I absolutley love Liverwurst sandwhiches though and find a few serves of this a week to be a great help.

Some good advice there below.

lots of children are deficient in iron, try an iron tonic

turkey, sunflower seeds, oats, apricots, egg yolks and spinach are good sources of iron

spinnach is packed with iron, also kale is great

I had a similar experience. The pharmacist was able to suggest a good kids vitamin with extra iron. It made a big difference.

Try broccoli, spinach any green veg is iron rich. I find if I make a spag bol or lasagne, I blend up the green veg and mix it through. you cant taste it and the kids don’t know its there. also. Green mash potato. just blend cooked spinach through and add bit of butter or salt to flavour. Cheesy veg bake is always a winner. they have cereal with added iron too also types in baby isle at w/worths or Coles.. hope it goes well.

Spinach is great for iron as well as mushrooms, avocado and leafy greens. Cooking foods and snacks using these ingredients will give your child a good start in upping her iron intake without relying on meats (avocados can be used for all things in baking – even muffins! They have a subtle nutty flavorur when baked). Another thing to mention is that the iron in fruits and vegetables is harder for our bodies to absorb. If you serve iron rich foods with those high in vitamin C it will help the body break down the food and absorb the iron content. If these flavours are too strong for your child you can always grate them into foods that she tolerates to mask the flavour somewhat. Savoury mince or spaghetti sauce is easy to up in iron by mixing in spinach, peas, corn and beans. Pizza toppings like mushroom, chickpeas, spinach and tomato are kid friendly too. Have a look at some of your favourite family recipes and try adding a little more iron rich fruit and veg and top it off with a glass of OJ