i'm into healthy cooking nowadays too. not out of want, but of need since i had a heart attack recently. and i'm not even old enough to have one.
i went to culinary school at medyo feeling ko factor din yun sa nangyari sakin. pano naman kasi, walang araw na ndi ka kakain ng pagkain na may butter or heavy cream. masarap talaga. pero umalma na yung puso ko. luckily, i didn't die. but i don't regret going to culinary school. thankful ako dahil ngayon feeling ko kaya kong dikartehan yung lasa ng pagkain sans the fat and the salt.
anyway, what i eat now are food low in cholesterol, salt and fat. i don't believe na mawawala yung sarap ng pagkain pag lessened yung mga yan. it just depends on your cooking technique and your ingredients. mas maganda pag fresh talaga. =) saludo ako sa paggamit mo ng herbs and spices. friends natin yan.
with regard to your dilemma of overcooking veggies, i suggest blanching. blanching is good kasi na-cucut yung cooking time and na-reretain mo yung nutrients nung veggies. it also kills the enzymes responsible for the loss of flavor and nutritional value of vegetables. tsaka if you blanch, you cut down on fat din. kasi pag mag-gigisa ka in oil, pag blanched na yung veggies mo prior to sauteing, ndi mo kailangang lutuin pa siya ng matagal sa mantika. thus, ndi rin ganun kadaming mantika yung maabsorb nung veggies mo at kakailanganin mo too cook in the first place. also kasi, may certain vegetables na nagtutubig pag naluto. blanching takes care of this. minsan kasi diba parang na-didilute yung lasa nung sauce or parang napapakuluan yung veggies sa wok so by the time na nag evaporate na yung liquid, malambot na masyado yung vegetables o wala na yung lasa kasi na leech out na dun sa liquid na nag-evaporate. so para maiwasan yan, blanch muna talaga.
madali lang mag blanch. pakulo ka lang ng tubig, as in dapat rolling boil. add a little bit of salt. this helps with retaining the vibrant color of vegetables as well as to sanitize. however, do not put salt if you're going to blanch fruit vegetables like zucchini, tomatoes and eggplant kasi magiging soggy yung vege. anyway, lagay mo lang yung precut veggies mo in the boiling water and cook until al dente. after that, you put the cooked vege in iced water to stop the cooking process. pagkatpos nun, you may cook it na according to your preference. or pwede niyo i-freeze in individual containers para next time, diretso luto na lang. how long you blanch veggies depends on the type ng vege. if mas dense, mas matagal. as a guide, i got this sa net para sa iba na ndi pa ganun ka-bihasa sa timing.

Green Beans, 3 minutes
Broccoli, chopped or stalks, 3 minutes
Beets, small, 25-30 minutes; medium, 45-50 minutes
Brussels Sprouts, small, 3 minutes; medium, 4 minutes; large, 5 minutes
Carrots, tiny, whole, 5 minutes; diced or strips, 2 minutes
Cauliflower, 3 minutes
Corn on the cob to freeze on the ear, small ears, 7 minutes; medium ears 9 minutes; large ears 11 minutes
Corn on the cob to cut for whole kernel corn, 4 minutes-cool and cut from ear
Corn on the cob to cut for cream style corn, 4 minutes-cool and cut from ear, scraping the cobs
Greens like spinach, 2 minutes
Shelled Peas, 1½ minutes
Snow or Sugar Snap Peas, 2-3 minutes
Summer Squash like zucchini, slices or chunks, 3 minutes; grated, 1-2 minutes
pagdating naman sa fish, i agree with cooking it "en papillote" or "in paper" gaya ng sabi nila sis ishi. instead of wax/parchment paper, you could use foil naman or banana or lotus leaf. fish parcels kumbaga. you can opt to steam this or cook in in the oven for 15 minutes. pwede rin sa microwave kung yung parchment gamit mo. although less yung cooking time. para di magsawa, use different accompaniments. kunwari para mediterranean style, cook the fish with zucchini julienne, cherry tomato halves, white onion julienne, minced garlic, a lemon slice, basil julienne, thyme, 1 tbsp of white wine and 1 tbsp of olive oil. para asian style, lay the fish on a baguio pechay leaf (either buo or cut into strips, then top with bird's eye chili, wansuy or kinchay, minced or julienned ginger and garlic, leeks or spring onions, slices of shitake or oyster mushroom, a dash of sesame oil, a thin slice of lime, a tsp of honey/sugar, and a tablepoon of soy sauce. add ka rin ng chinese cooking wine if you want. para medyo thai ang datingan, you can add kaffir lime leaves and lemongrass/tanglad to the mix and instead of sesame oil, use canola oil. kung chinese-ish ang peg, add 2 to 3 "petals" of a star anise. if you want na parang indian, omit the sesame oil then add 2 tbsp of coconut milk or cream para mas rich as well as curry powder or a mixture of ground cumin and coriander and top with eggplant slices/julienne. if you want na parang moroccan, combine the fish with carrot julienne, raisins, garlic, ginger, thyme, ground cumin, ground coriander, ground cinnamon and olive oil.
prior to this dapat, seasoned ang fish with a little salt, freshly crushed pepper and a sprinkling of lemon or lime juice. pwede din calamansi. you can also add some lemon or orange zest para mas masarap.
aside from this, you can also POACH the fish. to poach fish, dapat sobrang hina lang ng apoy. ndi dapat siya mag form ng bubbles ala boiling or simmering. meron namang bubbles pero sing liit lang ng uncrushed pepper. ganun lang dapat kahina. you can opt to poach on top of the stove thru a "court bouillon" or mas maganda kung sa oven (poaching with little liquid). poaching is an ideal cooking method since ndi titigas yung fish. ang ending, moist and yummy yung fish. at yung "liquid" na matitira after cooking the fish can be used to make a flavorful sauce (this is applicable when you poach in the oven). flavorful dahil dun napunta lahat nung lasa nung fish. if you do it sa oven, make sure na yung gagamitin na vessel eh pwede sa stove top at oven. to do this, first you season your fish with salt, white pepper and lemon/calamansi/lime juice. then you brush the bottom of the pot with olive oil or butter. then sprinkle minced shallots (maliliit na onions) sa ilalim nung pan then top it with the seasoned fish. after that you top it with sliced mushrooms. tapos nun, you put a little white wine and a little fish stock sa pan. ndi dapat humigit yung liquid dun sa height nung fish. dapat until half lang nung fish, maximum. tapos bring it to a very slow boil on top of the stove to rev up the cooking process. painitin lang kumbaga. pag medyo uminit na, takpan yung pot with aluminum foil or parchement paper brushed with olive oil or butter. then poach it in the oven 165 degree C (mahinang setting lang) for 15 minutes (depends on the size of the fish). when the fish is cooked you can opt to make a white sauce from the liquid. para shempre healthy, you can make use of a soy-based cream like yung nestle d'lite. tanggalin mo lang yung fish and set aside on a warm place. put the pot on top of the stove again. add cream to the liquid then you can thicken it with cornstarch diluted with stock or beurre manie (equal portions of fat like butter or olive oil and flour mixed into a paste). whisk mo lang until thickened and lumpless. pag beurre manie yung gamit, dapat simmer pa yung sauce for 15-20 minutes to get rid of the floury taste. so i suggest yung cornstarch na lang gamitin para mas mabilis. season lang yung sauce accordingly and at the end you could also add herbs to the sauce like tarragon, basil, parsley, etc. gourmet na yan kahit pa tilapia pa gamitin. hehe sa restaurant they would call that poached (insert fish name) fillet topped with (insert herb here) cream sauce. o diba.

you could use chicken fillet instead of fish too. same cooking process lang pero longer cooking time ng slight. you could also add other veggies aside from mushrooms to top the fish. pwede rin dagdagan yung shallots ng ibang aromatics like ginger or garlic or kahit pa lemongrass. yung liquid din, pwede kahit anong mixture. you could make use of different fruit juices/liquors or even milk for malalangsa na fishes depende sa peg na cuisine.

OHMAYGAHD. ANG HABA NG POST KO. sorry. haha