Q.Exploding sprouts…
I have recently discovered that my “square foot” raised bed garden is filled with tiny sprouts. Eek! They’re literally exploding amidst my peppers, tomatoes, lettuce, kale, etc. Tiny two-leafed sprouts that sorta look familiar to some lettuce sprouts in earlier plantings elsewhere in my back yard. I’ve pulled up or churned up dozens in each of the squares. Can someone help me to understand and deal with this, well, fast-sprouting problem? THANKS, Jim in Tennessee

Sounds like weeds!
These articles will help you.
https://www.gardeningknowhow.com/edible/vegetables/vgen/garden-weeding.htm
https://www.gardeningknowhow.com/edible/vegetables/vgen/vegetable-weed-control.htm