How can I get my guinea pigs to eat vegetables

Keep providing new veggies. My piggies learned to love red peppers, kale, and parsley by having cut edges sort of rubbed along their lips or held at ''mouth level'' so it was available for them to check out in their own time. As youngsters they will explore more and learn in time that veggies are the best treat for them!

Try.
Beet greens
- Bell / Sweet Peppers - red, green, yellow (not hot or chile)
- Broccoli Rabe / Rabe / Rapini
- Broccoli, Broccolini (stems r liked better than flowers)
- Brussels Sprouts
- Cabbage (in moderation)
- Chinese cabbage (in moderation)
- Cantaloupe Melon
- Carrot tops / leaves
- Cauliflower / Broccoflower
- Celery leaves
- Cilantro / Chinese Parsley / Coriander greens
- Collard greens
- Currants - yellow, red or black (leaves also edible)
- Dandelion greens
- Feijoa / Pineapple Guava
- Garden Cress
- Gooseberries
- Grapefruit (caution - sores around lips can develop)
- Grass - wheat, winter rye (grown in pots from seed)
- Guava
- Honeydew Melon
- Kale - curly or plain
- Kiwi Fruit
- Kohlrabi leaves
- Lemon, Lime (home-grown best, otherwise feed cautiously)
- Mango
- Mustard greens / Leaf Mustard
- Orange (caution - sores around lips can develop)
- Papaya / Paw Paw / Tree Melon
- Parsley - curly or plain (high in calcium)
- Peas in pods, Pea Shoots (not dried)
- Persimmon - american or oriental
- Red Cabbage
- Rosehip
- Savoy Cabbage
- Spinach (feed in moderation, linked to formation of kidney & bladder stones)
- Strawberries
- Swiss Chard, Red Chard
- Tamarillo (leaves poisonous)
- Tangerine / Mandarin (caution - sores around lips can develop)
- Tomato (sores around mouth can develop; leaves poisonous; artificially
grown can be low in vit C)
- Tuscan Cabbage / Cavolo Nero
- Water Cress

Sometimes u need to offer the same thing several different times before a guinea pig decides to try it. It is probably best not to offer the same thing twice in a row if they do not eat it, but offer something else the next time or two.
Our guinea pig immediately enjoyed cilantro, carrots & organic green beans but it took several attempts before he decided to try parsley, oranges, melon or bell pepper, all of which he *loves* now. They can be such strange, cautious little guys.

Keep offering them. Wash them well too, remember that they have a very good sense of smell.

Pellets are formulated to be just about perfect nutrition.

what about lettuce?