The "only" things you lose with Evocation is Magic Missile and the large area big boom spells. And wall of force. And contingency.
Fortunately, Transmutation is strong in save-or-be-screwed spells, like polymorph, and is the strongest in utility spells -from stats buffers to fly and teleport- so I´d concentrate in those. At low levels you´ll barely do points of damage, but Grease, Color Spray, Web, Slow, Blink, Haste, Displacement, Sleet Storm can help in combat as much as damage. I never used Burning Hands and I don´t like it, but if others say it´s great it must be (specially enlarged) Spider Climb, Feather Fall, Darkvision, Rope Trick and Knock are great utility spells.
At mid and high levels you´ll rock with Polmorph, Disintegrate, Transmute Mud to Rock/Rock to Mud, Telekinesis, Eyebite, and Reverse Gravity. Many of these have Fort saving throw -that´s not bad, since problematic foes like other wizards and undead have bad Fort saves- so have at hand enchantment spells like Confusion and Hold Monster. If nothing works, buff the fighters.
And don´t forget Shadow Evocation if you miss a fireball or two.