This fall / now, I’d take soil samples & amend the soil accordingly & plant Turner seed fall deer mix or MBS fall deer mix in the areas you want to use as food plots, the rest I'd plant with with rye, triticale, oats, wheat, turn the livestock into it after deer season.
Late winter / next spring, if the cows haven’t grazed it short, mow, fertilizer application, light disc, then I'd plant the whole area with a mix of wwbdahl, cowboy/buckaroo bermuda, kliengrass, haskel side oats, green sprangle top, blue grama. You'll have to move the cows out of it in July / August so it will go to seed the first year.
Use red river crab grass seed in areas prone to erosion.
Next deer season drill small areas of the MBS or Turner fall deer mix.
By the third year you'll have enough established plant life and volunteer sprouts & seeds to carry both the livestock & wildlife for many years without doing much.