Wow there’s great info in this thread from some big fish hammers.
A pond like that the biggest ones are probably eating bluegills, crappie, smaller bass. Keeping your shadow off the water and fan casting a moving topwater (buzz bait, horny toad, EZ swimmer) while you walk is probably worth a try. If you get a blow up but don’t connect you can come back later with the senko or fat Ika. IMHO the bigger size fish in shallow grass like you describe like to feed on top (think great whites and seals)
Being in Texas you know you’re in a place where they get big. Keep setting the hook and eventually a big one is gonna surprise you.