How to get more fiber

Beans, fruit, high fiber cereal or bread, Fiber Gourmet pasta (up to 80% of your daily fiber, 1/2 the calories of regular pasta). My goal is 45g per day and I usually meet it or come close with these as my main sources.

Adding flax or chia seeds can also up your fiber intake.

beans beans beans. Salads/veggies are good for fiber, too. But I'd throw some black beans or something on top as well for not only protein but fiber. Avocado is also very high in fiber, if I'm not mistaken. So, add that on there, too

broccoli, cauliflower, blackberries, raspberries, strawberries, blueberries, carrots, beets, are all excellent sources of fiber. I eat high fiber wraps instead of bread for sandwiches. I eat cottage cheese mixed with fiber one cereal and blueberries for breakfast, that alone is 19 grams of fiber (and super delicious; when my kids see me eat it they beg for bites).

Ohh! I now crust my chicken & fish with psyllium husks blended with dried spices. I also add psyllium husk to my smoothies.

I love having huge breakfast smoothies that I nurse all morning... This one tastes sweet & delicious:
1.5 C kale
1.5 C spinach
1 banana
0.5 C strawberries (sliced)
0.5 C blueberries
2 Tbsp psyllium husks

Blend until smooth (maybe adding a small amount of water if it is too thick for you)

I was surprised by how much fiber that corn on the cob has! I've been upping my fiber, too, and corn on the cob, chick peas, chia added to my oatmeal, apples & strawberries, figs & nuts have all helped me get the numbers up.

Go for as much variety in fruit and vegetables as you can - pile your plate high with them and you'll get your 38g with calories to spare. Try to make sure you get a mixture of soluble (bulks out or gels when water is added) and insoluble - they perform different functions in the body. Soluble helps you to feel full, and insoluble helps to get everything moving. If you just have soluble fiber, you might end up constipated. Luckily, most fruits and veggies have both. Whole grains are also a great source of fiber, but you can "cheat" and just add grain bran (wheat or oat etc.) to food you'd eat anyway.

Oh and go easy on the beans to start with - it can take your gut a while to get used to any change in diet and fiber is not different.

I understand you have to avoid seeds and nuts with diverticulitis, as these foods can aggravate the condition. Soluble fiber is probably better for you. High pectin fruits such as apples and pears. Oatmeal and especially oat bran is very high in soluble fiber.