1 Start With The Pinto Beans. (If Using Canned Beans, Rinse Them And Skip To Step 2.) Put The Beans Into A Large Pot And Cover With At Least 3 Inches Of Water (About 3 Quarts Of Water). Bring To A Boil And Lower The Heat To A Simmer. Simmer, Covered, For About 2 1/2 Hours Or Until The Beans Are Tender. By The Way, My Mother Uses A Pressure Cooker To Cook Pinto Beans. To Cook Beans With A Pressure Cooker, Cook No More Than 2 Cups Of Beans In A 4 Quart Pressure Cooker, With The Water Added Until It Reaches The Fill Line Indicated For The Capacity Of The Pressure Cooker. Cook The Beans For 35 Minutes With 15 Pounds Of Pressure And Low Heat. After 35 Minutes, Allow The Pressure Cooker To Cool Completely. Make Sure That The Pressure Cooker Has Completely Cooled Before Opening, And If There Is Any Resistance When Opening, Do Not Open It. Follow The Directions For Your Particular Brand Of Pressure Cooker. (See Safety Tips On Pressure Cookers.) 2 While The Beans Are Cooking Cook The Rice According To The Instructions On The Rice Package. Add A Tbsp Of Butter To The Rice While It Is Cooking For Flavor. 3 In A Large Skillet, Saut